Another example of the same concept - but say - you have 2 different columns - and you want to apply different agg functions to each of them i.e
f.groupBy("col1").agg(sum("col2").alias("col2"), avg("col3").alias("col3"), ...)
Here is the way to achieve it - though I do not yet know how to add the alias in this case
See the example below - Using Maps
val Claim1 = StructType(Seq(StructField("pid", StringType, true),StructField("diag1", StringType, true),StructField("diag2", StringType, true), StructField("allowed", IntegerType, true), StructField("allowed1", IntegerType, true)))
val claimsData1 = Seq(("PID1", "diag1", "diag2", 100, 200), ("PID1", "diag2", "diag3", 300, 600), ("PID1", "diag1", "diag5", 340, 680), ("PID2", "diag3", "diag4", 245, 490), ("PID2", "diag2", "diag1", 124, 248))
val claimRDD1 = sc.parallelize(claimsData1)
val claimRDDRow1 = claimRDD1.map(p => Row(p._1, p._2, p._3, p._4, p._5))
val claimRDD2DF1 = sqlContext.createDataFrame(claimRDDRow1, Claim1)
val l = List("allowed", "allowed1")
val exprs = l.map((_ -> "sum")).toMap
claimRDD2DF1.groupBy("pid").agg(exprs) show false
val exprs = Map("allowed" -> "sum", "allowed1" -> "avg")
claimRDD2DF1.groupBy("pid").agg(exprs) show false
Yes but ....
Ruby passes a reference to an object and since everything in ruby is an object, then you could say it's pass by reference.
I don't agree with the postings here claiming it's pass by value, that seems like pedantic, symantic games to me.
However, in effect it "hides" the behaviour because most of the operations ruby provides "out of the box" - for example string operations, produce a copy of the object:
> astringobject = "lowercase"
> bstringobject = astringobject.upcase
> # bstringobject is a new object created by String.upcase
> puts astringobject
lowercase
> puts bstringobject
LOWERCASE
This means that much of the time, the original object is left unchanged giving the appearance that ruby is "pass by value".
Of course when designing your own classes, an understanding of the details of this behaviour is important for both functional behaviour, memory efficiency and performance.
I use the old PHP way..It unsets all session variables and doesn't require to specify each one of them in an array. And after unsetting the variables we destroy the session
Are you looking for the syntax to open them:
Dim wkbk As Workbook
Set wkbk = Workbooks.Open("C:\MyDirectory\mysheet.xlsx")
Then, you can use wkbk.Sheets(1).Range("3:3")
(or whatever you need)
C# equivalent of your code is
class Imagedata : PDFStreamEngine
{
// C# uses "base" keyword whenever Java uses "super"
// so instead of super(...) in Java we should call its C# equivalent (base):
public Imagedata()
: base(ResourceLoader.loadProperties("org/apache/pdfbox/resources/PDFTextStripper.properties", true))
{ }
// Java methods are virtual by default, when C# methods aren't.
// So we should be sure that processOperator method in base class
// (that is PDFStreamEngine)
// declared as "virtual"
protected override void processOperator(PDFOperator operations, List arguments)
{
base.processOperator(operations, arguments);
}
}
In new page-plugin you can do multiple tabs in your website. The Page plugin lets you easily embed and promote any Facebook Page on your website. Just like on Facebook, your visitors can like and share the Page without leaving your site.
<body>
tag. <div id="fb-root"></div>_x000D_
<script>(function(d, s, id) {_x000D_
var js, fjs = d.getElementsByTagName(s)[0];_x000D_
if (d.getElementById(id)) return;_x000D_
js = d.createElement(s); js.id = id;_x000D_
js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.5&appId={APP_ID}";_x000D_
fjs.parentNode.insertBefore(js, fjs);_x000D_
}(document, 'script', 'facebook-jssdk'));</script>
_x000D_
<div class="fb-page" _x000D_
data-href="https://www.facebook.com/YourPageName" _x000D_
data-tabs="timeline" _x000D_
data-small-header="false" _x000D_
data-adapt-container-width="true" _x000D_
data-hide-cover="false" _x000D_
data-show-facepile="true">_x000D_
<div class="fb-xfbml-parse-ignore">_x000D_
<blockquote cite="https://www.facebook.com/facebook">_x000D_
<a href="https://www.facebook.com/facebook">Facebook</a>_x000D_
</blockquote>_x000D_
</div>_x000D_
</div>
_x000D_
You can also change the following settings:
Also You can now have timeline, events and messages tabs with the new page plugin:
<div class="fb-page" _x000D_
data-tabs="timeline,events,messages"_x000D_
data-href="https://www.facebook.com/YourPageName"_x000D_
data-width="380" _x000D_
data-hide-cover="false">_x000D_
</div>
_x000D_
You can not add ON DELETE CASCADE
to an already existing constraint. You will have to drop
and re-create
the constraint. The documentation shows that the MODIFY CONSTRAINT
clause can only modify the state of a constraint (i-e: ENABLED/DISABLED
...).
if you have some codes in your Page_Load method and you don't want that those execute after button click use if(!IsPostBack) on Page_Load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// put codes here
}
}
asp:Button is a server control and for send request to server and get response need page refresh. You can use JQuery and Ajax to prevent full Page refresh
I thought I will post my answer as I recently got into a similar issue (as of September 2019). The App is free for all users in all countries.
For me, after I received a confirmation email from Apple saying that my app is ready for sale (the email did not mention any 24 hours waiting period), I could not find my App in the App Store.
The link to view the App in the App Store in the iTunes Connect (under the App Information section at the bottom page) was broken.
After reading your comments in this thread, I went to the Pricing and Availability section of the App and edited the pricing plan again to be 0 GBP and start date Today and finish date No Finish Date.
Then, I unchecked the countries the App is available on and checked them all again and hit Save.
The App became immediately available in the App store. The link in the App information section was directing me to the App Store and no longer broken.
I hope this will help anyone who is having similar issues lately (getting a confirmation email that the App is ready for sale but cannot find it in the App Store).
I'd set up your HTML like so:
<img src="../images/bottle.jpg" alt="bottle" class="thumbnails" id="bottle" />
Then use the following code:
<script>
var images = document.getElementsByTagName("img");
for(var i = 0; i < images.length; i++) {
var image = images[i];
image.onclick = function(event) {
window.location.href = this.id + '.html';
};
}
</script>
That assigns an onclick
event handler to every image on the page (this may not be what you want, you can limit it further if necessary) that changes the current page to the value of the images id
attribute plus the .html
extension. It's essentially the pure Javascript implementation of @JanPöschko's jQuery answer.
There was a confusion between RichTextBox in System.Windows.Forms and in System.Windows.Control
I am using the one in the Control as I am using WPF. In there, there is no Text property, and in order to get a text, I should have used this line:
string myText = new TextRange(transcriberArea.Document.ContentStart, transcriberArea.Document.ContentEnd).Text;
thanks
As defined on Wikipedia, this should do it.
euc.dist <- function(x1, x2) sqrt(sum((x1 - x2) ^ 2))
There's also the rdist
function in the fields
package that may be useful. See here.
EDIT: Changed **
operator to ^
. Thanks, Gavin.
A scriptable object is an object that records the operations done to it and it can store them as a "script" which can be replayed.
For example, see: Application Scripting Framework
Now, if Alistair didn't know what he asked and really meant "subscriptable" objects (as edited by others), then (as mipadi also answered) this is the correct one:
A subscriptable object is any object that implements the __getitem__
special method (think lists, dictionaries).
Here is a full example comparing 2 fields in an object, one String and one int, also using Collator to sort.
public class Test {
public static void main(String[] args) {
Collator myCollator;
myCollator = Collator.getInstance(Locale.US);
List<Item> items = new ArrayList<Item>();
items.add(new Item("costrels", 1039737, ""));
items.add(new Item("Costs", 1570019, ""));
items.add(new Item("costs", 310831, ""));
items.add(new Item("costs", 310832, ""));
Collections.sort(items, new Comparator<Item>() {
@Override
public int compare(final Item record1, final Item record2) {
int c;
//c = record1.item1.compareTo(record2.item1); //optional comparison without Collator
c = myCollator.compare(record1.item1, record2.item1);
if (c == 0)
{
return record1.item2 < record2.item2 ? -1
: record1.item2 > record2.item2 ? 1
: 0;
}
return c;
}
});
for (Item item : items)
{
System.out.println(item.item1);
System.out.println(item.item2);
}
}
public static class Item
{
public String item1;
public int item2;
public String item3;
public Item(String item1, int item2, String item3)
{
this.item1 = item1;
this.item2 = item2;
this.item3 = item3;
}
}
}
Output:
costrels 1039737
costs 310831
costs 310832
Costs 1570019
Yes, here is the process:
# Navigate to a directory and initiate a local repository
git init
# Add remote repository to be tracked for changes:
git remote add origin https://github.com/username/repository_name.git
# Track all changes made on above remote repository
# This will show files on remote repository not available on local repository
git fetch
# Add file present in staging area for checkout
git check origin/master -m /path/to/file
# NOTE: /path/to/file is a relative path from repository_name
git add /path/to/file
# Verify track of file(s) being committed to local repository
git status
# Commit to local repository
git commit -m "commit message"
# You may perform a final check of the staging area again with git status
select
{
-webkit-appearance: none;
}
If you need to you can also add an image that contains the arrow as part of the background.
Try this: http://jsbin.com/axaler/3/edit
$(function(){
$(window).scroll(function(){
var aTop = $('.ad').height();
if($(this).scrollTop()>=aTop){
alert('header just passed.');
// instead of alert you can use to show your ad
// something like $('#footAd').slideup();
}
});
});
Use double braces {{
or }}
so your code becomes:
sb.AppendLine(String.Format("public {0} {1} {{ get; private set; }}",
prop.Type, prop.Name));
// For prop.Type of "Foo" and prop.Name of "Bar", the result would be:
// public Foo Bar { get; private set; }
On Android 6+ follow this path: Settings -> Google -> Security -> Verify Apps Uncheck them all! Now you're good to GO!!!
R.id.button
is not part of R.layout.activity_main
. How should the activity find it in the content view?
The layout that contains the button is displayed by the Fragment, so you have to get the Button there, in the Fragment.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Array_Small_and_lagest {
class Program {
static void Main(string[] args) {
int[] array = new int[10];
Console.WriteLine("enter the array elements to b sorted");
for (int i = 0; i < 10; i++) {
array[i] = Convert.ToInt32(Console.ReadLine());
}
int smallest = array[0];
foreach (int i in array) {
if (i < smallest) {
smallest = i;
}
}
int largest = array[9];
foreach (int i in array) {
if (i > largest) {
largest = i;
}
}
Console.WriteLine("the smallest no is {0}", smallest);
Console.WriteLine("the largest no is {0}", largest);
Console.Read();
}
}
}
As of writing, October 2014 - so here is a contemporary solution. Am writing the solution as a Node Module, and have included a test using Mocha and Chai, as well as underscoreJS. You can easily ignore these, and just take the Enum code if preferred.
Seen a lot of posts with overly convoluted libraries etc. The solution to getting enum support in Javascript is so simple it really isn't needed. Here is the code:
File: enums.js
_ = require('underscore');
var _Enum = function () {
var keys = _.map(arguments, function (value) {
return value;
});
var self = {
keys: keys
};
for (var i = 0; i < arguments.length; i++) {
self[keys[i]] = i;
}
return self;
};
var fileFormatEnum = Object.freeze(_Enum('CSV', 'TSV'));
var encodingEnum = Object.freeze(_Enum('UTF8', 'SHIFT_JIS'));
exports.fileFormatEnum = fileFormatEnum;
exports.encodingEnum = encodingEnum;
And a test to illustrate what it gives you:
file: enumsSpec.js
var chai = require("chai"),
assert = chai.assert,
expect = chai.expect,
should = chai.should(),
enums = require('./enums'),
_ = require('underscore');
describe('enums', function () {
describe('fileFormatEnum', function () {
it('should return expected fileFormat enum declarations', function () {
var fileFormatEnum = enums.fileFormatEnum;
should.exist(fileFormatEnum);
assert('{"keys":["CSV","TSV"],"CSV":0,"TSV":1}' === JSON.stringify(fileFormatEnum), 'Unexpected format');
assert('["CSV","TSV"]' === JSON.stringify(fileFormatEnum.keys), 'Unexpected keys format');
});
});
describe('encodingEnum', function () {
it('should return expected encoding enum declarations', function () {
var encodingEnum = enums.encodingEnum;
should.exist(encodingEnum);
assert('{"keys":["UTF8","SHIFT_JIS"],"UTF8":0,"SHIFT_JIS":1}' === JSON.stringify(encodingEnum), 'Unexpected format');
assert('["UTF8","SHIFT_JIS"]' === JSON.stringify(encodingEnum.keys), 'Unexpected keys format');
});
});
});
As you can see, you get an Enum factory, you can get all the keys simply by calling enum.keys, and you can match the keys themselves to integer constants. And you can reuse the factory with different values, and export those generated Enums using Node's modular approach.
Once again, if you are just a casual user, or in the browser etc, just take the factory part of the code, potentially removing underscore library too if you don't wish to use it in your code.
777
is a permission in Unix based system with full read/write/execute permission to owner, group and everyone.. in general we give this permission to assets which are not much needed to be hidden from public on a web server, for example images..
You said I am using windows 7.
if that means that your web server is Windows based then you should login to that and right click the folder and set permissions to everyone
and if you are on a windows client and server is unix/linux based then use some ftp software and in the parent directory right click and change the permission for the folder.
If you want permission to be set on sub-directories
too then usually their is option to set permission recursively use that.
And, if you feel like doing it from command line the use putty and login to server and go to the parent directory includes
and write the following command
chmod 0777 module_installation/
for recursive
chmod -R 0777 module_installation/
Hope this will help you
As @Psyonity mentioned, you can use the conditionalWeakTable to add properties to existing objects. Combined with the dynamic ExpandoObject, you could implement dynamic extension properties in a few lines:
using System.Dynamic;
using System.Runtime.CompilerServices;
namespace ExtensionProperties
{
/// <summary>
/// Dynamically associates properies to a random object instance
/// </summary>
/// <example>
/// var jan = new Person("Jan");
///
/// jan.Age = 24; // regular property of the person object;
/// jan.DynamicProperties().NumberOfDrinkingBuddies = 27; // not originally scoped to the person object;
///
/// if (jan.Age < jan.DynamicProperties().NumberOfDrinkingBuddies)
/// Console.WriteLine("Jan drinks too much");
/// </example>
/// <remarks>
/// If you get 'Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create' you should reference Microsoft.CSharp
/// </remarks>
public static class ObjectExtensions
{
///<summary>Stores extended data for objects</summary>
private static ConditionalWeakTable<object, object> extendedData = new ConditionalWeakTable<object, object>();
/// <summary>
/// Gets a dynamic collection of properties associated with an object instance,
/// with a lifetime scoped to the lifetime of the object
/// </summary>
/// <param name="obj">The object the properties are associated with</param>
/// <returns>A dynamic collection of properties associated with an object instance.</returns>
public static dynamic DynamicProperties(this object obj) => extendedData.GetValue(obj, _ => new ExpandoObject());
}
}
A usage example is in the xml comments:
var jan = new Person("Jan");
jan.Age = 24; // regular property of the person object;
jan.DynamicProperties().NumberOfDrinkingBuddies = 27; // not originally scoped to the person object;
if (jan.Age < jan.DynamicProperties().NumberOfDrinkingBuddies)
{
Console.WriteLine("Jan drinks too much");
}
jan = null; // NumberOfDrinkingBuddies will also be erased during garbage collection
Looks like you've got the syntax slightly wrong... I'm assuming based on your code that you're trying to scroll down 100px in 800ms, if so then this works (using scrollTo 1.4.1):
$.scrollTo('+=100px', 800, { axis:'y' });
Try below code
String dateStr = "Jul 27, 2011 8:35:29 PM";
DateFormat readFormat = new SimpleDateFormat( "MMM dd, yyyy hh:mm:ss aa");
DateFormat writeFormat = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = readFormat.parse( dateStr );
} catch ( ParseException e ) {
e.printStackTrace();
}
String formattedDate = "";
if( date != null ) {
formattedDate = writeFormat.format( date );
}
System.out.println(formattedDate);
Good Luck!!!
Check for various formats.
It's the null conditional operator. It basically means:
"Evaluate the first operand; if that's null, stop, with a result of null. Otherwise, evaluate the second operand (as a member access of the first operand)."
In your example, the point is that if a
is null
, then a?.PropertyOfA
will evaluate to null
rather than throwing an exception - it will then compare that null
reference with foo
(using string's ==
overload), find they're not equal and execution will go into the body of the if
statement.
In other words, it's like this:
string bar = (a == null ? null : a.PropertyOfA);
if (bar != foo)
{
...
}
... except that a
is only evaluated once.
Note that this can change the type of the expression, too. For example, consider FileInfo.Length
. That's a property of type long
, but if you use it with the null conditional operator, you end up with an expression of type long?
:
FileInfo fi = ...; // fi could be null
long? length = fi?.Length; // If fi is null, length will be null
Here i have a simple solution, - (Multiple permission checking)
String[] permissions = new String[]{
Manifest.permission.WRITE_CALL_LOG,
Manifest.permission.READ_CALL_LOG,
Manifest.permission.READ_CONTACTS,
Manifest.permission.WRITE_CONTACTS}; // Here i used multiple permission check
Then call it in Oncreate
if (checkPermissions()) { // permissions granted.
getCallDetails();
}
Finally, copy the below code
private boolean checkPermissions() {
int result;
List<String> listPermissionsNeeded = new ArrayList<>();
for (String p : permissions) {
result = ContextCompat.checkSelfPermission(getApplicationContext(), p);
if (result != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(p);
}
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]), MULTIPLE_PERMISSIONS);
return false;
}
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MULTIPLE_PERMISSIONS: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // permissions granted.
getCallDetails(); // Now you call here what ever you want :)
} else {
String perStr = "";
for (String per : permissions) {
perStr += "\n" + per;
} // permissions list of don't granted permission
}
return;
}
}
}
This is how I approached it. I did not want to "cross the bridge", as it has been removed from Xcode 6 beta 5 anyway, quick and dirty:
extension String {
// converting a string to double
func toDouble() -> Double? {
// split the string into components
var comps = self.componentsSeparatedByString(".")
// we have nothing
if comps.count == 0 {
return nil
}
// if there is more than one decimal
else if comps.count > 2 {
return nil
}
else if comps[0] == "" || comps[1] == "" {
return nil
}
// grab the whole portion
var whole = 0.0
// ensure we have a number for the whole
if let w = comps[0].toInt() {
whole = Double(w)
}
else {
return nil
}
// we only got the whole
if comps.count == 1 {
return whole
}
// grab the fractional
var fractional = 0.0
// ensure we have a number for the fractional
if let f = comps[1].toInt() {
// use number of digits to get the power
var toThePower = Double(countElements(comps[1]))
// compute the fractional portion
fractional = Double(f) / pow(10.0, toThePower)
}
else {
return nil
}
// return the result
return whole + fractional
}
// converting a string to float
func toFloat() -> Float? {
if let val = self.toDouble() {
return Float(val)
}
else {
return nil
}
}
}
// test it out
var str = "78.001"
if let val = str.toFloat() {
println("Str in float: \(val)")
}
else {
println("Unable to convert Str to float")
}
// now in double
if let val = str.toDouble() {
println("Str in double: \(val)")
}
else {
println("Unable to convert Str to double")
}
You'd need to make the enum expose value
somehow, e.g.
public enum Tax {
NONE(0), SALES(10), IMPORT(5);
private final int value;
private Tax(int value) {
this.value = value;
}
public int getValue() {
return value;
}
}
...
public int getTaxValue() {
Tax tax = Tax.NONE; // Or whatever
return tax.getValue();
}
(I've changed the names to be a bit more conventional and readable, btw.)
This is assuming you want the value assigned in the constructor. If that's not what you want, you'll need to give us more information.
Here's how to do it ES7 way, if you're using Babel transpiler or Typescript 2:
async function isUrlFound(url) {
try {
const response = await fetch(url, {
method: 'HEAD',
cache: 'no-cache'
});
return response.status === 200;
} catch(error) {
// console.log(error);
return false;
}
}
Then inside your other async
scope, you can easily check whether url exist:
const isValidUrl = await isUrlFound('http://www.example.com/somefile.ext');
console.log(isValidUrl); // true || false
In Eclipse you can do it simply as follows :
Right click on your Java Project and select Export.
Select Java -> Runnable JAR file -> Next.
Select the Launch Configuration and choose project file as your Main class
Select the Destination folder where you would like to save it and click Finish.
Just to add to everything already said, you may access the input
s either with the name
or id
using preferably the elements
property of the Object form, because without it you may get a property of the form named "foo" rather than an HTML element. And according to @Paul D. Waite it's perfectly ok to have both name and id.
var myForm = document.getElementById("myform")_x000D_
console.log(myForm.foo.value) // hey_x000D_
console.log(myForm.foo2.value) // hey_x000D_
//preferable_x000D_
console.log(myForm.elements.foo.value) // hey_x000D_
console.log(myForm.elements.foo2.value) // hey
_x000D_
<form id="myform">_x000D_
<input type="text" name="foo" id="foo2" value="hey">_x000D_
</form>
_x000D_
According to MDN on the HTMLFormElement.elements page
The HTMLFormElement property elements returns an HTMLFormControlsCollection listing all the form controls contained in the element. Independently, you can obtain just the number of form controls using the length property.
You can access a particular form control in the returned collection by using either an index or the element's name or id.
I found the solution for the above program, which had the goal of signing in to http://rediff.com
public class Handle_popupNAlert
{
public static void main(String[] args ) throws InterruptedException
{
WebDriver driver= new FirefoxDriver();
driver.get("http://www.rediff.com/");
WebElement sign = driver.findElement(By.xpath("//html/body/div[3]/div[3]/span[4]/span/a"));
sign.click();
Set<String> windowId = driver.getWindowHandles(); // get window id of current window
Iterator<String> itererator = windowId.iterator();
String mainWinID = itererator.next();
String newAdwinID = itererator.next();
driver.switchTo().window(newAdwinID);
System.out.println(driver.getTitle());
Thread.sleep(3000);
driver.close();
driver.switchTo().window(mainWinID);
System.out.println(driver.getTitle());
Thread.sleep(2000);
WebElement email_id= driver.findElement(By.xpath("//*[@id='c_uname']"));
email_id.sendKeys("hi");
Thread.sleep(5000);
driver.close();
driver.quit();
}
}
When you
import App from './App.jsx';
That means it will import whatever you export default
. You can rename App
class inside App.jsx
to whatever you want as long as you export default
it will work but you can only have one export default.
So you only need to export default App
and you don't need to export the rest.
If you still want to export the rest of the components, you will need named export.
https://developer.mozilla.org/en/docs/web/javascript/reference/statements/export
I have had to use code like this to provide functions to allocate memory to a pointer passed in and return its size because my company "object" to me using the STL
int iSizeOfArray(int* &piArray) {
piArray = new int[iNumberOfElements];
...
return iNumberOfElements;
}
It is not nice, but the pointer must be passed by reference (or use double pointer). If not, memory is allocated to a local copy of the pointer if it is passed by value which results in a memory leak.
The top-scoring answer has the right idea, but the API seems to have evolved so that it no longer works as when it was first written, in 2015.
In place of this:
from OpenSSL import SSL
context = SSL.Context(SSL.PROTOCOL_TLSv1_2)
context.use_privatekey_file('server.key')
context.use_certificate_file('server.crt')
I used this, with Python 3.7.5:
import ssl
context = ssl.SSLContext()
context.load_cert_chain('fullchain.pem', 'privkey.pem')
and then supplied the SSL context in the Flask.run
call as it said:
app.run(…, ssl_context=context)
(My server.crt
file is called fullchain.pem
and my server.key
is called privkey.pem
. These files were supplied to me by my LetsEncrypt Certbot.)
If you want to get information about your installed python distributions and don't want to use your cmd console or terminal for it, but rather through python code, you can use the following code (tested with python 3.4):
import pip #needed to use the pip functions
for i in pip.get_installed_distributions(local_only=True):
print(i)
The pip.get_installed_distributions(local_only=True)
function-call returns an iterable and because of the for-loop and the print function the elements contained in the iterable are printed out separated by new line characters (\n
).
The result will (depending on your installed distributions) look something like this:
cycler 0.9.0
decorator 4.0.4
ipykernel 4.1.0
ipython 4.0.0
ipython-genutils 0.1.0
ipywidgets 4.0.3
Jinja2 2.8
jsonschema 2.5.1
jupyter 1.0.0
jupyter-client 4.1.1
#... and so on...
Have you looked at this page?
http://www.mongodb.org/display/DOCS/Aggregation#Aggregation-Distinct
That might save you some time?
eg db.addresses.distinct("zip-code");
In the Solution Explorer, right-click any ASPX page and select "Browse With" and select IE as the default.
Note... the same steps can be used to add Google Chrome as a browser option and to optionally set it as the default browser.
Majority of the solutions above have a high run time complexity.
Here is the solution that uses reduce
and can do the job in O(n) time.
Array.prototype.unique = Array.prototype.unique || function() {_x000D_
var arr = [];_x000D_
this.reduce(function (hash, num) {_x000D_
if(typeof hash[num] === 'undefined') {_x000D_
hash[num] = 1; _x000D_
arr.push(num);_x000D_
}_x000D_
return hash;_x000D_
}, {});_x000D_
return arr;_x000D_
}_x000D_
_x000D_
var myArr = [3,1,2,3,3,3];_x000D_
console.log(myArr.unique()); //[3,1,2];
_x000D_
Note:
This solution is not dependent on reduce. The idea is to create an object map and push unique ones into the array.
My issue was also solved by sifting through the Process Explorer. However, the process I had to kill was the MySQL Notifier.exe that was still running after closing all VS and SQL applications.
Quick comparison of timings in response to the post by Abbafei:
import timeit
def func1():
phrase = 'Lucky Dog'
return any(i in 'LD' for i in phrase)
def func2():
phrase = 'Lucky Dog'
if ('L' in phrase) or ('D' in phrase):
return True
else:
return False
if __name__ == '__main__':
func1_time = timeit.timeit(func1, number=100000)
func2_time = timeit.timeit(func2, number=100000)
print('Func1 Time: {0}\nFunc2 Time: {1}'.format(func1_time, func2_time))
Output:
Func1 Time: 0.0737484362111
Func2 Time: 0.0125144964371
So the code is more compact with any, but faster with the conditional.
EDIT : TL;DR -- For long strings, if-then is still much faster than any!
I decided to compare the timing for a long random string based on some of the valid points raised in the comments:
# Tested in Python 2.7.14
import timeit
from string import ascii_letters
from random import choice
def create_random_string(length=1000):
random_list = [choice(ascii_letters) for x in range(length)]
return ''.join(random_list)
def function_using_any(phrase):
return any(i in 'LD' for i in phrase)
def function_using_if_then(phrase):
if ('L' in phrase) or ('D' in phrase):
return True
else:
return False
if __name__ == '__main__':
random_string = create_random_string(length=2000)
func1_time = timeit.timeit(stmt="function_using_any(random_string)",
setup="from __main__ import function_using_any, random_string",
number=200000)
func2_time = timeit.timeit(stmt="function_using_if_then(random_string)",
setup="from __main__ import function_using_if_then, random_string",
number=200000)
print('Time for function using any: {0}\nTime for function using if-then: {1}'.format(func1_time, func2_time))
Output:
Time for function using any: 0.1342546
Time for function using if-then: 0.0201827
If-then is almost an order of magnitude faster than any!
I wrote a simple function to check for a insensitive value in an array the code is below.
function:
function in_array_insensitive($needle, $haystack) {
$needle = strtolower($needle);
foreach($haystack as $k => $v) {
$haystack[$k] = strtolower($v);
}
return in_array($needle, $haystack);
}
how to use:
$array = array('one', 'two', 'three', 'four');
var_dump(in_array_insensitive('fOUr', $array));
You can get this error when the compiler gets too confused about what's going on in your code. I noticed you have a number of what appear to be functions nested within functions. You might try commenting out some of that at a time to see if the error goes away. That way you can zero in on the problem area. You can't use breakpoints because it's a compile time error, not a run time error.
Do you mean in Python or using ctypes?
In the first case, you simply cannot - because Python does not have signed/unsigned, 16/32 bit integers.
In the second case, you can use type()
:
>>> import ctypes
>>> a = ctypes.c_uint() # unsigned int
>>> type(a)
<class 'ctypes.c_ulong'>
For more reference on ctypes, an its type, see the official documentation.
You can use both Arrays.equals()
and MessageDigest.isEqual()
. These two methods have some differences though.
MessageDigest.isEqual()
is a time-constant comparison method and Arrays.equals()
is non time-constant and it may bring some security issues if you use it in a security application.
The details for the difference can be read at Arrays.equals() vs MessageDigest.isEqual()
Just how you've done it. assertTrue(boolean)
also has an overload assertTrue(String, boolean)
where the String
is the message in case of failure; you can use that if you want to print that such-and-such wasn't greater than so-and-so.
You could also add hamcrest-all
as a dependency to use matchers. See https://code.google.com/p/hamcrest/wiki/Tutorial:
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
assertThat("timestamp",
Long.parseLong(previousTokenValues[1]),
greaterThan(Long.parseLong(currentTokenValues[1])));
That gives an error like:
java.lang.AssertionError: timestamp
Expected: a value greater than <456L>
but: <123L> was less than <456L>
None of these worked for me. I converted the first element to be part of a series (a single element series), and converted the second element also to be a series, and used append function.
l = ((pd.Series(<first element>)).append(pd.Series(<list of other elements>))).tolist()
Use a JSON parser, like JSON.NET
string json = "{ \"Atlantic/Canary\": \"GMT Standard Time\", \"Europe/Lisbon\": \"GMT Standard Time\", \"Antarctica/Mawson\": \"West Asia Standard Time\", \"Etc/GMT+3\": \"SA Eastern Standard Time\", \"Etc/GMT+2\": \"UTC-02\", \"Etc/GMT+1\": \"Cape Verde Standard Time\", \"Etc/GMT+7\": \"US Mountain Standard Time\", \"Etc/GMT+6\": \"Central America Standard Time\", \"Etc/GMT+5\": \"SA Pacific Standard Time\", \"Etc/GMT+4\": \"SA Western Standard Time\", \"Pacific/Wallis\": \"UTC+12\", \"Europe/Skopje\": \"Central European Standard Time\", \"America/Coral_Harbour\": \"SA Pacific Standard Time\", \"Asia/Dhaka\": \"Bangladesh Standard Time\", \"America/St_Lucia\": \"SA Western Standard Time\", \"Asia/Kashgar\": \"China Standard Time\", \"America/Phoenix\": \"US Mountain Standard Time\", \"Asia/Kuwait\": \"Arab Standard Time\" }";
var data = (JObject)JsonConvert.DeserializeObject(json);
string timeZone = data["Atlantic/Canary"].Value<string>();
A simple accidental way is to do a git checkout head
as a typo of HEAD
.
Try this:
git init
touch Readme.md
git add Readme.md
git commit
git checkout head
which gives
Note: checking out 'head'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
git checkout -b <new-branch-name>
HEAD is now at 9354043... Readme
Left Click on chart. «PivotTable Field List» will appear on right. On the right down quarter of PivotTable Field List (S Values), you see the names of the legends. Left Click on the legend name. Left Click on the «Value field settings». At the top there is «Source Name». You can’t change it. Below there is «Custom Name». Change the Custom Name as you wish. Now the legend name on the chart has the new name you gave.
I wanted also to check if a remote file exist but with RSH. I have tried the previous solutions but they didn't work with RSH.
Finally, I did I short function which works fine:
function existRemoteFile ()
{
REMOTE=$1
FILE=$2
RESULT=$(rsh -l user $REMOTE "test -e $FILE && echo \"0\" || echo \"1\"")
if [ $RESULT -eq 0 ]
then
return 0
else
return 1
fi
}
Just read the docs:
This exception is thrown when no initial context implementation can be created. The policy of how an initial context implementation is selected is described in the documentation of the InitialContext class.
This exception can be thrown during any interaction with the InitialContext, not only when the InitialContext is constructed. For example, the implementation of the initial context might lazily retrieve the context only when actual methods are invoked on it. The application should not have any dependency on when the existence of an initial context is determined.
But this is explained much better in the docs for InitialContext
Hadley Wickham
dplyr
packages is always a saver in case of data wrangling.
To add the desired division as a third variable I would use mutate()
d <- mutate(d, new = min / count2.freq)
So, I was having the same issue, but trying to import Android code via the "Import..." menu. When neither of the above two solutions worked on Eclipse Juno:
Eclipse -> File -> Import -> General -> Existing Project Into Workspace (NOTE: NOT 'EXISTING ANDROID PROJECT')
(Projects should import correctly, but should have errors. We must now attach the SDK to the project)
Right-Click on the project, Properties->Android->Project Build Target Choose the appropriate build target (in doubt, use 4.0.3 in the project is newish, and use 2.2 if the project is oldish)
Click OK
Once the project rebuilds, everything should be back in order.
(This was written when Eclipse Indigo was in vogue, and there may be changes as Google updates their tools to cover corner cases.)
Requirements:
moment().fromNow()
functionality."today"
, "yesterday"
, "tomorrow"
, etc.Solution:
// call this function, passing-in your date
function dateToFromNowDaily( myDate ) {
// get from-now for this date
var fromNow = moment( myDate ).fromNow();
// ensure the date is displayed with today and yesterday
return moment( myDate ).calendar( null, {
// when the date is closer, specify custom values
lastWeek: '[Last] dddd',
lastDay: '[Yesterday]',
sameDay: '[Today]',
nextDay: '[Tomorrow]',
nextWeek: 'dddd',
// when the date is further away, use from-now functionality
sameElse: function () {
return "[" + fromNow + "]";
}
});
}
NB: From version 2.14.0, the formats argument to the calendar function can be a callback, see http://momentjs.com/docs/#/displaying/calendar-time/.
let VC1 = self.storyboard!.instantiateViewController(withIdentifier: "MyCustomViewController") as! ViewController
let navController = UINavigationController(rootViewController: VC1)
self.present(navController, animated:true, completion: nil)
after a few days of wondering, my solution was that I forgot to use @Test annotation before the @BeforeEach
The time_t
value for midnight GMT is always divisible by 86400
(24 * 3600
). The value for seconds-since-midnight GMT is thus time %% 86400
.
The hour in GMT is (time %% 86400) / 3600
and this can be used as the x-axis of the plot:
plot((as.numeric(times) %% 86400)/3600, val)
To adjust for a time zone, adjust the time before taking the modulus, by adding the number of seconds that your time zone is ahead of GMT. For example, US central daylight saving time (CDT) is 5 hours behind GMT. To plot against the time in CDT, the following expression is used:
plot(((as.numeric(times) - 5*3600) %% 86400)/3600, val)
When using the LESS version you can import mixins.less and create your own classes for colored badges:
.badge-warning {
.label-variant(@label-warning-bg);
}
Same for the other colors; just replace warning with danger, success, etc.
I like
Get-WmiObject Win32_computersystem | format-custom *
That seems to expand everything.
There's also a show-object command in the PowerShellCookbook module that does it in a GUI. Jeffrey Snover, the PowerShell creator, uses it in his unplugged videos (recommended).
Although most often I use
Get-WmiObject Win32_computersystem | fl *
It avoids the .format.ps1xml file that defines a table or list view for the object type, if there are any. The format file may even define column headers that don't match any property names.
A function is not even needed. Just put parentheses around the default expression:
create temporary table test(
id int,
ts timestamp without time zone default (now() at time zone 'utc')
);
Or you could keep it simple by doing something like this:
alert(angular.equals({}, $scope.items));
The difference is simple: they cause different warning messages to be emitted when compiling:
1156942.c:7:31: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int *’ [-Wformat=]
printf("memory address = %d\n", &a); // prints "memory add=-12"
^
1156942.c:8:31: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 2 has type ‘int *’ [-Wformat=]
printf("memory address = %u\n", &a); // prints "memory add=65456"
^
If you pass your pointer as a void*
and use %p
as the conversion specifier, then you get no error message:
#include <stdio.h>
int main()
{
int a = 5;
// check the memory address
printf("memory address = %d\n", &a); /* wrong */
printf("memory address = %u\n", &a); /* wrong */
printf("memory address = %p\n", (void*)&a); /* right */
}
in other way, you can do it with javascript , in Jquery you can use something like:
$('div:visible').last()
*reedited
I found a easy solution: make the tag " li "be inside the tag " a ":
<a href="#"><li>Something1</li></a>
In 2018 some of the above solutions do not work anymore or do not work with .NET Core.
I use the following approach which is simple and works for my .NET Core 2.0 project.
Add the following to your .csproj inside the PropertyGroup :
<Today>$([System.DateTime]::Now)</Today>
This defines a PropertyFunction which you can access in your pre build command.
Your pre-build looks like this
echo $(today) > $(ProjectDir)BuildTimeStamp.txt
Set the property of the BuildTimeStamp.txt to Embedded resource.
Now you can read the time stamp like this
public static class BuildTimeStamp
{
public static string GetTimestamp()
{
var assembly = Assembly.GetEntryAssembly();
var stream = assembly.GetManifestResourceStream("NamespaceGoesHere.BuildTimeStamp.txt");
using (var reader = new StreamReader(stream))
{
return reader.ReadToEnd();
}
}
}
Because of double print function. I suggest you to use return
instead of print
inside the function definition.
def lyrics():
return "The very first line"
print(lyrics())
OR
def lyrics():
print("The very first line")
lyrics()
Since 2020-05-07, the docker-compose spec also defines the "pull_policy" property for a service:
version: '3.7'
services:
my-service:
image: someimage/somewhere
pull_policy: always
The docker-compose spec says:
pull_policy defines the decisions Compose implementations will make when it starts to pull images.
Possible values are (tl;dr, check spec for more details):
If you want this type of code to run in IE11 (which does not support much of ES6 at all), then you need to get a 3rd party promise library (like Bluebird), include that library and change your coding to use ES5 coding structures (no arrow functions, no let
, etc...) so you can live within the limits of what older browsers support.
Or, you can use a transpiler (like Babel) to convert your ES6 code to ES5 code that will work in older browsers.
Here's a version of your code written in ES5 syntax with the Bluebird promise library:
<script src="https://cdnjs.cloudflare.com/ajax/libs/bluebird/3.3.4/bluebird.min.js"></script>
<script>
'use strict';
var promise = new Promise(function(resolve) {
setTimeout(function() {
resolve("result");
}, 1000);
});
promise.then(function(result) {
alert("Fulfilled: " + result);
}, function(error) {
alert("Rejected: " + error);
});
</script>
Just use File.GetLastWriteTime. There's a sample on that page showing how to use it.
For the case I met, I found there are missing modules after make. So I did the following:
With the caveat of it not working in IE and some older mobile browsers, a simple object-fit: cover;
is often the best option.
.cropper {
position: relative;
width: 100px;
height: 100px;
overflow: hidden;
}
.cropper img {
position: absolute;
width: 100%;
height: 100%;
object-fit: cover;
}
Without the object-fit: cover
support, the image will be stretched oddly to fit the box so, if support for IE is needed, I'd recommend using one of the other answers' approach with -100%
top, left, right and bottom values as a fallback.
You need to install ssh2 lib
sudo apt-get install libssh2-php && sudo /etc/init.d/apache2 restart
that should be enough to get you on the road
I'm a little surprised it doesn't just do that. Could there another element inside the div that has a width set to something greater than 250?
You should use List<Person>
or a HashSet<Person>
.
In addition to the differences mentioned in other answers, there also is a speed difference. d = {} is over twice as fast:
python -m timeit -s "d = {}" "for i in xrange(500000): d.clear()"
10 loops, best of 3: 127 msec per loop
python -m timeit -s "d = {}" "for i in xrange(500000): d = {}"
10 loops, best of 3: 53.6 msec per loop
Here is the example for having one or more checkboxes value. If you have two or more checkboxes and need values then this would really help.
function myFunction() {_x000D_
var selchbox = [];_x000D_
var inputfields = document.getElementsByName("myCheck");_x000D_
var ar_inputflds = inputfields.length;_x000D_
_x000D_
for (var i = 0; i < ar_inputflds; i++) {_x000D_
if (inputfields[i].type == 'checkbox' && inputfields[i].checked == true)_x000D_
selchbox.push(inputfields[i].value);_x000D_
}_x000D_
return selchbox;_x000D_
_x000D_
}_x000D_
_x000D_
document.getElementById('btntest').onclick = function() {_x000D_
var selchb = myFunction();_x000D_
console.log(selchb);_x000D_
}
_x000D_
Checkbox:_x000D_
<input type="checkbox" name="myCheck" value="UK">United Kingdom_x000D_
<input type="checkbox" name="myCheck" value="USA">United States_x000D_
<input type="checkbox" name="myCheck" value="IL">Illinois_x000D_
<input type="checkbox" name="myCheck" value="MA">Massachusetts_x000D_
<input type="checkbox" name="myCheck" value="UT">Utah_x000D_
_x000D_
<input type="button" value="Click" id="btntest" />
_x000D_
One options will be to show the selected option above (or below) the select list like following:
HTML
<div id="selText"><span> </span></div><br/>
<select size="4" id="mySelect" style="width:65px;color:#f98ad3;">
<option value="1" selected>option 1 The Long Option</option>
<option value="2">option 2</option>
<option value="3">option 3</option>
<option value="4">option 4</option>
<option value="5">option 5 Another Longer than the Long Option ;)</option>
<option value="6">option 6</option>
</select>
JavaScript
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"
type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
$("select#mySelect").change(function(){
//$("#selText").html($($(this).children("option:selected")[0]).text());
var txt = $($(this).children("option:selected")[0]).text();
$("<span>" + txt + "<br/></span>").appendTo($("#selText span:last"));
});
});
</script>
PS:- Set height of div#selText otherwise it will keep shifting select list downward.
Per Phairoh: Use this in the Page/Component just in case the panel name changes
<script type="text/javascript">
<!--
//must be global to be called by ExternalInterface
function JSFunction() {
__doPostBack('<%= myUpdatePanel.ClientID %>', '');
}
-->
</script>
Yes, but unless you expect to have millions of rows, not using a string-based key because it's slower is usually "premature optimization." After all, strings are stored as big numbers while numeric keys are usually stored as smaller numbers.
One thing to watch out for, though, is if you have clustered indices on a any key and are doing large numbers of inserts that are non-sequential in the index. Every line written will cause the index to re-write. if you're doing batch inserts, this can really slow the process down.
YouTube is owned by Google and Google likes to have a reasonable number of images for different screen sizes, hence its images are stored in different sizes. Here is an example of how your thumbnail will be like:
Low quality thumbnail:
http://img.youtube.com/vi/<YouTube_Video_ID_HERE>/sddefault.jpg
Medium quality thumbnail:
http://img.youtube.com/vi/<YouTube_Video_ID_HERE>/mqdefault.jpg
High quality thumbnail:
http://img.youtube.com/vi/<YouTube_Video_ID_HERE>/hqdefault.jpg
Maximum quality thumbnail:
http://img.youtube.com/vi/<YouTube_Video_ID_HERE>/maxresdefault.jpg
You are not returning a response object from your view my_form_post
. The function ends with implicit return None
, which Flask does not like.
Make the function my_form_post
return an explicit response, for example
return 'OK'
at the end of the function.
I had mistyped the IP address by one digit, which meant it was going to one of my other servers. Very confusing as you get a .NET error page but from the wrong machine!
fixed my agent string evaluation by scrubbing the string for LOWERCASE "iphone os 5_0" as opposed to "iPhone OS 5_0." now i am properly assigning iOS 5 specific classes to my html, when the uppercase scrub failed.
I know that I have this problem over and over when I deploy my application on a new server because I'm using this driver to connect to a Excel file. So here it is what I'm doing lately.
There's a Windows Server 2008 R2, I install the Access drivers for a x64 bit machine and I get rid of this message, which makes me very happy just to bump into another.
This one here below works splendidly on my dev machine but on server gives me an error even after installing the latest ODBC drivers, which I think this is the problem, but this is how I solved it.
private const string OledbProviderString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\\OlsonWindows.xls;Extended Properties=\"Excel 8.0;HDR=YES\"";
I replace with the new provider like this below:
private const string OledbProviderString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\OlsonWindows.xlsx;Extended Properties='Excel 12.0;HDR=YES;';";
But as I do this, there's one thing you should notice. Using the .xlsx file extension and Excel version is 12.0.
After I get into this error message Error: "Could Not Find Installable ISAM", I decide to change the things a little bit like below:
private const string OledbProviderString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\OlsonWindows.xls;Extended Properties='Excel 8.0;HDR=YES;';";
and yes, I'm done with that nasty thing, but here I got another message The Microsoft Access database engine cannot open or write to the file 'time_zone'. It is already opened exclusively by another user, or you need permission to view and write its data. which tells me I'm not far away from solving it.
Maybe there's another process that opened the file meanwhile and all that I have to do is a restart and all will take start smoothly running as expected.
This line:
myForm.file.$setValidity("myForm.file.$error.size", false);
Should be
$scope.myForm.file.$setValidity("size", false);
For future reference:
yyyy => 4 digit year
MM => 2 digit month (you must type MM in ALL CAPS)
dd => 2 digit "day of the month"
HH => 2-digit "hour in day" (0 to 23)
mm => 2-digit minute (you must type mm in lowercase)
ss => 2-digit seconds
SSS => milliseconds
So "yyyy-MM-dd HH:mm:ss" returns "2018-01-05 09:49:32"
But "MMM dd, yyyy hh:mm a" returns "Jan 05, 2018 09:49 am"
The so-called examples at https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html show only output. They do not tell you what formats to use!
#!/bin/bash
num=0
metab=0
for ((i=1; i<=2; i++)); do
for j in `ls output-$i-*`; do
echo "$j"
metab=$(cat $j|grep EndBuffer|awk '{sum+=$2} END { print sum/120}') (line15)
let num=num+metab (line 16)
done
echo "$num"
done
Use compareTo(BigDecimal.ZERO)
instead of equals()
:
if (price.compareTo(BigDecimal.ZERO) == 0) // see below
Comparing with the BigDecimal
constant BigDecimal.ZERO
avoids having to construct a new BigDecimal(0)
every execution.
FYI, BigDecimal
also has constants BigDecimal.ONE
and BigDecimal.TEN
for your convenience.
The reason you can't use BigDecimal#equals()
is that it takes scale into consideration:
new BigDecimal("0").equals(BigDecimal.ZERO) // true
new BigDecimal("0.00").equals(BigDecimal.ZERO) // false!
so it's unsuitable for a purely numeric comparison. However, BigDecimal.compareTo()
doesn't consider scale when comparing:
new BigDecimal("0").compareTo(BigDecimal.ZERO) == 0 // true
new BigDecimal("0.00").compareTo(BigDecimal.ZERO) == 0 // true
For Eclipse users...
Click Run —> Run configuration —> are —> set Alternate JRE for 1.6 or 1.7
to make border u have to make another xml file with property of solid and corners in the drawable folder and calls it in background
Just add a question mark ?
to the optional field.
interface Employee{
id: number;
name: string;
salary?: number;
}
I found a function that can plot the confusion matrix which generated from sklearn
.
import numpy as np
def plot_confusion_matrix(cm,
target_names,
title='Confusion matrix',
cmap=None,
normalize=True):
"""
given a sklearn confusion matrix (cm), make a nice plot
Arguments
---------
cm: confusion matrix from sklearn.metrics.confusion_matrix
target_names: given classification classes such as [0, 1, 2]
the class names, for example: ['high', 'medium', 'low']
title: the text to display at the top of the matrix
cmap: the gradient of the values displayed from matplotlib.pyplot.cm
see http://matplotlib.org/examples/color/colormaps_reference.html
plt.get_cmap('jet') or plt.cm.Blues
normalize: If False, plot the raw numbers
If True, plot the proportions
Usage
-----
plot_confusion_matrix(cm = cm, # confusion matrix created by
# sklearn.metrics.confusion_matrix
normalize = True, # show proportions
target_names = y_labels_vals, # list of names of the classes
title = best_estimator_name) # title of graph
Citiation
---------
http://scikit-learn.org/stable/auto_examples/model_selection/plot_confusion_matrix.html
"""
import matplotlib.pyplot as plt
import numpy as np
import itertools
accuracy = np.trace(cm) / np.sum(cm).astype('float')
misclass = 1 - accuracy
if cmap is None:
cmap = plt.get_cmap('Blues')
plt.figure(figsize=(8, 6))
plt.imshow(cm, interpolation='nearest', cmap=cmap)
plt.title(title)
plt.colorbar()
if target_names is not None:
tick_marks = np.arange(len(target_names))
plt.xticks(tick_marks, target_names, rotation=45)
plt.yticks(tick_marks, target_names)
if normalize:
cm = cm.astype('float') / cm.sum(axis=1)[:, np.newaxis]
thresh = cm.max() / 1.5 if normalize else cm.max() / 2
for i, j in itertools.product(range(cm.shape[0]), range(cm.shape[1])):
if normalize:
plt.text(j, i, "{:0.4f}".format(cm[i, j]),
horizontalalignment="center",
color="white" if cm[i, j] > thresh else "black")
else:
plt.text(j, i, "{:,}".format(cm[i, j]),
horizontalalignment="center",
color="white" if cm[i, j] > thresh else "black")
plt.tight_layout()
plt.ylabel('True label')
plt.xlabel('Predicted label\naccuracy={:0.4f}; misclass={:0.4f}'.format(accuracy, misclass))
plt.show()
This is almost like the other answer but you don't need a scatter
plot at all, you can simply specify a scatter-plot-like format (fmt
-parameter) for errorbar
:
import matplotlib.pyplot as plt
x = [1, 2, 3, 4]
y = [1, 4, 9, 16]
e = [0.5, 1., 1.5, 2.]
plt.errorbar(x, y, yerr=e, fmt='o')
plt.show()
Result:
A list of the avaiable fmt
parameters can be found for example in the plot
documentation:
character description
'-' solid line style
'--' dashed line style
'-.' dash-dot line style
':' dotted line style
'.' point marker
',' pixel marker
'o' circle marker
'v' triangle_down marker
'^' triangle_up marker
'<' triangle_left marker
'>' triangle_right marker
'1' tri_down marker
'2' tri_up marker
'3' tri_left marker
'4' tri_right marker
's' square marker
'p' pentagon marker
'*' star marker
'h' hexagon1 marker
'H' hexagon2 marker
'+' plus marker
'x' x marker
'D' diamond marker
'd' thin_diamond marker
'|' vline marker
'_' hline marker
What worked for me is:
java
path is available:$ which java
/usr/bin/java
netbeans_jdkhome
is commented outYou would expect ./netbeans --jdkhome=/usr/bin/java
to work, but it doesn't for some reason.
add Location to your constructor from @angular/common
constructor(private _location: Location) {}
add the back function:
back() {
this._location.back();
}
and then in your view:
<button class="btn" (click)="back()">Back</button>
If you are using the System.Diagnostics.Debugger.Break(); workaround (which I think is just fine for temporary use) and it's "just not working" on your Windows 8 Machine. The reason is a bug in Visual Studio's "Just in time debugging".
The fix is as follows is to fix the key for the "Visual Studio Just-In-Time Debugger"
Open regedit and go to HKEY_CLASSES_ROOT\AppID{E62A7A31-6025-408E-87F6-81AEB0DC9347} for the ‘AppIDFlags’ registry value, set the flag to 0x8
More info here: http://connect.microsoft.com/VisualStudio/feedback/details/770786/just-in-time-debugging-operation-attempted-is-not-supported
If you need to mock a static method, it is a strong indicator for a bad design. Usually, you mock the dependency of your class-under-test. If your class-under-test refers to a static method - like java.util.Math#sin for example - it means the class-under-test needs exactly this implementation (of accuracy vs. speed for example). If you want to abstract from a concrete sinus implementation you probably need an Interface (you see where this is going to)?
ldapConnection is the server adres: ldap.example.com Ldap.Connection.Path is the path inside the ADS that you like to use insert in LDAP format.
OU=Your_OU,OU=other_ou,dc=example,dc=com
You start at the deepest OU working back to the root of the AD, then add dc=X for every domain section until you have everything including the top level domain
Now i miss a parameter to authenticate, this works the same as the path for the username
CN=username,OU=users,DC=example,DC=com
Here is a much-expanded version of Simon Hewitt's class:
/// <summary>
/// Safely converts a <see cref="float"/> to an <see cref="int"/> for floating-point comparisons.
/// </summary>
[StructLayout(LayoutKind.Explicit)]
public struct FloatToInt : IEquatable<FloatToInt>, IEquatable<float>, IEquatable<int>, IComparable<FloatToInt>, IComparable<float>, IComparable<int>
{
/// <summary>
/// Initializes a new instance of the <see cref="FloatToInt"/> class.
/// </summary>
/// <param name="floatValue">The <see cref="float"/> value to be converted to an <see cref="int"/>.</param>
public FloatToInt(float floatValue)
: this()
{
FloatValue = floatValue;
}
/// <summary>
/// Gets the floating-point value as an integer.
/// </summary>
[FieldOffset(0)]
public readonly int IntValue;
/// <summary>
/// Gets the floating-point value.
/// </summary>
[FieldOffset(0)]
public readonly float FloatValue;
/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <returns>
/// true if the current object is equal to the <paramref name="other"/> parameter; otherwise, false.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public bool Equals(FloatToInt other)
{
return other.IntValue == IntValue;
}
/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <returns>
/// true if the current object is equal to the <paramref name="other"/> parameter; otherwise, false.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public bool Equals(float other)
{
return IntValue == new FloatToInt(other).IntValue;
}
/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <returns>
/// true if the current object is equal to the <paramref name="other"/> parameter; otherwise, false.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public bool Equals(int other)
{
return IntValue == other;
}
/// <summary>
/// Compares the current object with another object of the same type.
/// </summary>
/// <returns>
/// A value that indicates the relative order of the objects being compared. The return value has the following meanings: Value Meaning Less than zero This object is less than the <paramref name="other"/> parameter.Zero This object is equal to <paramref name="other"/>. Greater than zero This object is greater than <paramref name="other"/>.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public int CompareTo(FloatToInt other)
{
return IntValue.CompareTo(other.IntValue);
}
/// <summary>
/// Compares the current object with another object of the same type.
/// </summary>
/// <returns>
/// A value that indicates the relative order of the objects being compared. The return value has the following meanings: Value Meaning Less than zero This object is less than the <paramref name="other"/> parameter.Zero This object is equal to <paramref name="other"/>. Greater than zero This object is greater than <paramref name="other"/>.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public int CompareTo(float other)
{
return IntValue.CompareTo(new FloatToInt(other).IntValue);
}
/// <summary>
/// Compares the current object with another object of the same type.
/// </summary>
/// <returns>
/// A value that indicates the relative order of the objects being compared. The return value has the following meanings: Value Meaning Less than zero This object is less than the <paramref name="other"/> parameter.Zero This object is equal to <paramref name="other"/>. Greater than zero This object is greater than <paramref name="other"/>.
/// </returns>
/// <param name="other">An object to compare with this object.</param>
public int CompareTo(int other)
{
return IntValue.CompareTo(other);
}
/// <summary>
/// Indicates whether this instance and a specified object are equal.
/// </summary>
/// <returns>
/// true if <paramref name="obj"/> and this instance are the same type and represent the same value; otherwise, false.
/// </returns>
/// <param name="obj">Another object to compare to. </param><filterpriority>2</filterpriority>
public override bool Equals(object obj)
{
if (ReferenceEquals(null, obj))
{
return false;
}
if (obj.GetType() != typeof(FloatToInt))
{
return false;
}
return Equals((FloatToInt)obj);
}
/// <summary>
/// Returns the hash code for this instance.
/// </summary>
/// <returns>
/// A 32-bit signed integer that is the hash code for this instance.
/// </returns>
/// <filterpriority>2</filterpriority>
public override int GetHashCode()
{
return IntValue;
}
/// <summary>
/// Implicitly converts from a <see cref="FloatToInt"/> to an <see cref="int"/>.
/// </summary>
/// <param name="value">A <see cref="FloatToInt"/>.</param>
/// <returns>An integer representation of the floating-point value.</returns>
public static implicit operator int(FloatToInt value)
{
return value.IntValue;
}
/// <summary>
/// Implicitly converts from a <see cref="FloatToInt"/> to a <see cref="float"/>.
/// </summary>
/// <param name="value">A <see cref="FloatToInt"/>.</param>
/// <returns>The floating-point value.</returns>
public static implicit operator float(FloatToInt value)
{
return value.FloatValue;
}
/// <summary>
/// Determines if two <see cref="FloatToInt"/> instances have the same integer representation.
/// </summary>
/// <param name="left">A <see cref="FloatToInt"/>.</param>
/// <param name="right">A <see cref="FloatToInt"/>.</param>
/// <returns>true if the two <see cref="FloatToInt"/> have the same integer representation; otherwise, false.</returns>
public static bool operator ==(FloatToInt left, FloatToInt right)
{
return left.IntValue == right.IntValue;
}
/// <summary>
/// Determines if two <see cref="FloatToInt"/> instances have different integer representations.
/// </summary>
/// <param name="left">A <see cref="FloatToInt"/>.</param>
/// <param name="right">A <see cref="FloatToInt"/>.</param>
/// <returns>true if the two <see cref="FloatToInt"/> have different integer representations; otherwise, false.</returns>
public static bool operator !=(FloatToInt left, FloatToInt right)
{
return !(left == right);
}
}
You are not selecting multiple indexes with PriceList[0][1][2][3][4][5][6] , instead each [] is going into a sub index.
Try this
PizzaChange=float(input("What would you like the new price for all standard pizzas to be? "))
PriceList[0:7]=[PizzaChange]*7
PriceList[7:11]=[PizzaChange+3]*4
You are just outside the directory which you are working. Enter into the directory which your project is there and run command ng g c name
.
SELECT CAST(GETDATE() AS DATE)
Returns the current date with the time part removed.
DATETIME
s are not "stored in the following format". They are stored in a binary format.
SELECT CAST(GETDATE() AS BINARY(8))
The display format in the question is independent of storage.
Formatting into a particular display format should be done by your application.
These are the changes since python 2:
try:
1 / 0
except Exception as e: # (as opposed to except Exception, e:)
# ^ that will just look for two classes, Exception and e
# for the repr
print(repr(e))
# for just the message, or str(e), since print calls str under the hood
print(e)
# the arguments that the exception has been called with.
# the first one is usually the message. (OSError is different, though)
print(e.args)
You can look into the standard library module traceback for fancier stuff.
Adding processData: false
to the $.ajax
options will fix this issue.
This is easier and gives purpose to the never used unordered/ordered list tags.
In your CSS add:
li{float: left;} //Sets float left property globally for all li tags.
Then add in your HTML:
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
Now watch it all line up perfectly! No more arguing over tables vs divs!
If you want to compare pair of map you can use this method:
typedef map<double, double> TestMap;
TestMap testMap;
pair<map<double,double>::iterator,bool> controlMapValues;
controlMapValues= testMap.insert(std::pair<double,double>(x,y));
if (controlMapValues.second == false )
{
TestMap::iterator it;
it = testMap.find(x);
if (it->second == y)
{
cout<<"Given value is already exist in Map"<<endl;
}
}
This is a useful technique.
Menu File → Preference → Settings →
Check the "Trim Trailing Whitespace" option - "When enabled, will trim trailing whitespace when saving a file".
Use addHeader
Instead of using setHeader
method,
response.addHeader("Access-Control-Allow-Origin", "*");
*
in above line will allow access to all domains
.
For allowing access to specific domain only
:
response.addHeader("Access-Control-Allow-Origin", "http://www.example.com");
Check this blog post
.
Okay. You only need to use 'flatMap' when you're facing nested Optionals. Here's the example.
public class Person {
private Optional<Car> optionalCar;
public Optional<Car> getOptionalCar() {
return optionalCar;
}
}
public class Car {
private Optional<Insurance> optionalInsurance;
public Optional<Insurance> getOptionalInsurance() {
return optionalInsurance;
}
}
public class Insurance {
private String name;
public String getName() {
return name;
}
}
public class Test {
// map cannot deal with nested Optionals
public Optional<String> getCarInsuranceName(Person person) {
return person.getOptionalCar()
.map(Car::getOptionalInsurance) // ? leads to a Optional<Optional<Insurance>
.map(Insurance::getName); // ?
}
}
Like Stream, Optional#map will return a value wrapped by a Optional. That's why we get a nested Optional -- Optional<Optional<Insurance>
. And at ?, we want to map it as an Insurance instance, that's how the tragedy happened.
The root is nested Optionals. If we can get the core value regardless the shells, we'll get it done. That's what flatMap does.
public Optional<String> getCarInsuranceName(Person person) {
return person.getOptionalCar()
.flatMap(Car::getOptionalInsurance)
.map(Insurance::getName);
}
In the end, I stronly recommed the Java 8 In Action to you if you'd like to study Java8 Systematicly.
I have stumbled upon this problem for one hour. After an hour, I tried debugging and this helped:
$('.list').on('click', 'span', (e) => {
$(e.target).parent().remove();
});
HTML:
<ul class="list">
<li class="task">some text<span>X</span></li>
<li class="task">some text<span>X</span></li>
<li class="task">some text<span>X</span></li>
<li class="task">some text<span>X</span></li>
<li class="task">some text<span>X</span></li>
</ul>
See https://stackoverflow.com/a/12900859/104891.
First of all, set the language level
/release versions
in pom.xml
like that:
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
Maven sets the default to 1.5 otherwise. You will also need to include the maven-compiler-plugin
if you haven't already:
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</dependency>
Also, try to change the Java version in each of these places:
File -> Project structure -> Project -> Project SDK -> 11.
File -> Project structure -> Project -> Project language level -> 11.
File -> Project structure -> Project -> Modules -> -> Sources --> 11
In project -> ctrl + alt + s -> Build, Execution, Deployment -> Compiler -> Java Compiler -> Project bytecode version -> 11
In project -> ctrl + alt + s -> Build, Execution, Deployment -> Compiler -> Java Compiler -> Module -> 1.11.
In gcc, you can label the parameter with the unused
attribute.
This attribute, attached to a variable, means that the variable is meant to be possibly unused. GCC will not produce a warning for this variable.
In practice this is accomplished by putting __attribute__ ((unused))
just before the parameter. For example:
void foo(workerid_t workerId) { }
becomes
void foo(__attribute__((unused)) workerid_t workerId) { }
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.item_id:
//Your Code....
item.setEnabled(false);
break;
}
return super.onOptionsItemSelected(item);
}
CountDownTimer waitTimer;
waitTimer = new CountDownTimer(60000, 300) {
public void onTick(long millisUntilFinished) {
//called every 300 milliseconds, which could be used to
//send messages or some other action
}
public void onFinish() {
//After 60000 milliseconds (60 sec) finish current
//if you would like to execute something when time finishes
}
}.start();
to stop the timer early:
if(waitTimer != null) {
waitTimer.cancel();
waitTimer = null;
}
EugeneXa mentioned it in a comment, but it deserves to be an answer:
var template = $("#modal_template").html().trim();
This trims the offending whitespace from the beginning of the string. I used it with Mustache, like so:
var markup = Mustache.render(template, data);
$(markup).appendTo(container);
Why not do it with one method call:
File.AppendAllLines("file.txt", new[] { DateTime.Now.ToString() });
which will do the newline for you, and allow you to insert multiple lines at once if you want.
If you try to open a TCP connection to another host and see the error "Connection refused," it means that
RST is a bit on the TCP packet which indicates that the connection should be reset. Usually it means that the other host has received your connection attempt and is actively refusing your TCP connection, but sometimes an intervening firewall may block your TCP SYN packet and send a TCP RST back to you.
See https://tools.ietf.org/html/rfc793 page 69:
SYN-RECEIVED STATE
If the RST bit is set
If this connection was initiated with a passive OPEN (i.e., came from the LISTEN state), then return this connection to LISTEN state and return. The user need not be informed. If this connection was initiated with an active OPEN (i.e., came from SYN-SENT state) then the connection was refused, signal the user "connection refused". In either case, all segments on the retransmission queue should be removed. And in the active OPEN case, enter the CLOSED state and delete the TCB, and return.
//this can be easily understandable for beginners
int score=12344534;
int div;
for (div = 1; div <= score; div *= 10)
{
}
/*for (div = 1; div <= score; div *= 10); for loop with semicolon or empty body is same*/
while(score>0)
{
div /= 10;
printf("%d\n`enter code here`", score / div);
score %= div;
}
In my case when I comment out mirrorlist the error got away but the repo was also not working so I manually point the right baseurl in /etc/yum.repos.d/epel.repo
as below
[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://iad.mirror.rackspace.com/epel/7Server/x86_64/
#metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=http://iad.mirror.rackspace.com/epel/7Server/x86_64/debug/
#metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1
[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=http://iad.mirror.rackspace.com/epel/7Server/SRPMS/
#metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-source-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1
Thanks to all. I had been stuck on standard format strings for some time. I also used a custom function in VB.
Mark Up:-
<asp:Label ID="Label3" runat="server" text='<%# Formatlabel(DataBinder.Eval(Container.DataItem, "psWages1D")) %>'/>
Code behind:-
Public Function fLabel(ByVal tval) As String
fLabel = tval.ToString("#,##0.00%;(#,##0.00%);Zero")
End Function
Assuming the following method to test:
public boolean doSomething(SomeClass arg);
Mockito documentation says that you should not use captor in this way:
when(someObject.doSomething(argumentCaptor.capture())).thenReturn(true);
assertThat(argumentCaptor.getValue(), equalTo(expected));
Because you can just use matcher during stubbing:
when(someObject.doSomething(eq(expected))).thenReturn(true);
But verification is a different story. If your test needs to ensure that this method was called with a specific argument, use ArgumentCaptor
and this is the case for which it is designed:
ArgumentCaptor<SomeClass> argumentCaptor = ArgumentCaptor.forClass(SomeClass.class);
verify(someObject).doSomething(argumentCaptor.capture());
assertThat(argumentCaptor.getValue(), equalTo(expected));
To create a new branch (locally):
With the commit hash (or part of it)
git checkout -b new_branch 6e559cb
or to go back 4 commits from HEAD
git checkout -b new_branch HEAD~4
Once your new branch is created (locally), you might want to replicate this change on a remote of the same name: How can I push my changes to a remote branch
For discarding the last three commits, see Lunaryorn's answer below.
For moving your current branch HEAD to the specified commit without creating a new branch, see Arpiagar's answer below.
As cartman pointed out, you can use any kind of hash value for finding exact duplicates.
One starting point for finding close images could be here. This is a tool used by CG companies to check if revamped images are still showing essentially the same scene.
This is how to make Marquis' answer work with both POST and GET requests:
// $type must equal 'GET' or 'POST'
function curl_request_async($url, $params, $type='POST')
{
foreach ($params as $key => &$val) {
if (is_array($val)) $val = implode(',', $val);
$post_params[] = $key.'='.urlencode($val);
}
$post_string = implode('&', $post_params);
$parts=parse_url($url);
$fp = fsockopen($parts['host'],
isset($parts['port'])?$parts['port']:80,
$errno, $errstr, 30);
// Data goes in the path for a GET request
if('GET' == $type) $parts['path'] .= '?'.$post_string;
$out = "$type ".$parts['path']." HTTP/1.1\r\n";
$out.= "Host: ".$parts['host']."\r\n";
$out.= "Content-Type: application/x-www-form-urlencoded\r\n";
$out.= "Content-Length: ".strlen($post_string)."\r\n";
$out.= "Connection: Close\r\n\r\n";
// Data goes in the request body for a POST request
if ('POST' == $type && isset($post_string)) $out.= $post_string;
fwrite($fp, $out);
fclose($fp);
}
Another example to output date and time using zero as a fill character on instances of single digit values: 2017-06-04 18:13:02
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <ctime>
using namespace std;
int main()
{
time_t t = time(0); // Get time now
struct tm * now = localtime(&t);
cout.fill('0');
cout << (now->tm_year + 1900) << '-'
<< setw(2) << (now->tm_mon + 1) << '-'
<< setw(2) << now->tm_mday << ' '
<< setw(2) << now->tm_hour << ':'
<< setw(2) << now->tm_min << ':'
<< setw(2) << now->tm_sec
<< endl;
return 0;
}
There is a pairwise()
function example in the itertools
document:
from itertools import tee, izip
def pairwise(iterable):
"s -> (s0,s1), (s1,s2), (s2, s3), ..."
a, b = tee(iterable)
next(b, None)
return izip(a, b)
import pandas as pd
df = pd.DataFrame(['AA', 'BB', 'CC'], columns = ['value'])
for (i1, row1), (i2, row2) in pairwise(df.iterrows()):
print i1, i2, row1["value"], row2["value"]
Here is the output:
0 1 AA BB
1 2 BB CC
But, I think iter rows in a DataFrame
is slow, if you can explain what's the problem you want to solve, maybe I can suggest some better method.
This way you can Create NSArray, NSMutableArray.
NSArray keys =[NSArray arrayWithObjects:@"key1",@"key2",@"key3",nil];
NSArray objects =[NSArray arrayWithObjects:@"value1",@"value2",@"value3",nil];
Complementing the @DanielLew answer, to get the values of the parameteres you have to do this:
URI example: myapp://path/to/what/i/want?keyOne=valueOne&keyTwo=valueTwo
in your activity:
Intent intent = getIntent();
if (Intent.ACTION_VIEW.equals(intent.getAction())) {
Uri uri = intent.getData();
String valueOne = uri.getQueryParameter("keyOne");
String valueTwo = uri.getQueryParameter("keyTwo");
}
vector <int> numbers {10,20,30,40};
vector <int> *ptr {nullptr};
ptr = &numbers;
for(auto num: *ptr){
cout << num << endl;
}
cout << (*ptr).at(2) << endl; // 20
cout << "-------" << endl;
cout << ptr -> at(2) << endl; // 20
Just move it to /usr/local/bin
folder and remove the extension
sudo mv composer.phar /usr/local/bin/composer
Here is a basic implementation of a graph. Note: I use vertex which is chained to next vertex. And each vertex has a list pointing to adjacent nodes.
#include <iostream>
using namespace std;
// 1 ->2
// 1->4
// 2 ->3
// 4->3
// 4 -> 5
// Adjacency list
// 1->2->3-null
// 2->3->null
//4->5->null;
// Structure of a vertex
struct vertex {
int i;
struct node *list;
struct vertex *next;
};
typedef struct vertex * VPTR;
// Struct of adjacency list
struct node {
struct vertex * n;
struct node *next;
};
typedef struct node * NODEPTR;
class Graph {
public:
// list of nodes chained together
VPTR V;
Graph() {
V = NULL;
}
void addEdge(int, int);
VPTR addVertex(int);
VPTR existVertex(int i);
void listVertex();
};
// If vertex exist, it returns its pointer else returns NULL
VPTR Graph::existVertex(int i) {
VPTR temp = V;
while(temp != NULL) {
if(temp->i == i) {
return temp;
}
temp = temp->next;
}
return NULL;
}
// Add a new vertex to the end of the vertex list
VPTR Graph::addVertex(int i) {
VPTR temp = new(struct vertex);
temp->list = NULL;
temp->i = i;
temp->next = NULL;
VPTR *curr = &V;
while(*curr) {
curr = &(*curr)->next;
}
*curr = temp;
return temp;
}
// Add a node from vertex i to j.
// first check if i and j exists. If not first add the vertex
// and then add entry of j into adjacency list of i
void Graph::addEdge(int i, int j) {
VPTR v_i = existVertex(i);
VPTR v_j = existVertex(j);
if(v_i == NULL) {
v_i = addVertex(i);
}
if(v_j == NULL) {
v_j = addVertex(j);
}
NODEPTR *temp = &(v_i->list);
while(*temp) {
temp = &(*temp)->next;
}
*temp = new(struct node);
(*temp)->n = v_j;
(*temp)->next = NULL;
}
// List all the vertex.
void Graph::listVertex() {
VPTR temp = V;
while(temp) {
cout <<temp->i <<" ";
temp = temp->next;
}
cout <<"\n";
}
// Client program
int main() {
Graph G;
G.addEdge(1, 2);
G.listVertex();
}
With the above code, you can expand to do DFS/BFS etc.
In addition to the pure javascript answers above, You can use jQuery text method as following:
$('#myspan').text('newtext');
If you need to extend the answer to get/change html content of a span or div elements, you can do this:
$('#mydiv').html('<strong>new text</strong>');
References:
.text(): http://api.jquery.com/text/
.html(): http://api.jquery.com/html/
For my case, I was trying to execute procedure code in MySQL, and due to some issue with server in which Server can't figure out where to end the statement I was getting Error Code 1064. So I wrapped the procedure with custom DELIMITER and it worked fine.
For example, Before it was:
DROP PROCEDURE IF EXISTS getStats;
CREATE PROCEDURE `getStats` (param_id INT, param_offset INT, param_startDate datetime, param_endDate datetime)
BEGIN
/*Procedure Code Here*/
END;
After putting DELIMITER it was like this:
DROP PROCEDURE IF EXISTS getStats;
DELIMITER $$
CREATE PROCEDURE `getStats` (param_id INT, param_offset INT, param_startDate datetime, param_endDate datetime)
BEGIN
/*Procedure Code Here*/
END;
$$
DELIMITER ;
#include <stdio.h>
#include <malloc.h>
tydef struct node
{
int info;
struct node *link;
} *start;
void main()
{
rev();
}
void rev()
{
struct node *p = start, *q = NULL, *r;
while (p != NULL)
{
r = q;
q = p;
p = p->link;
q->link = r;
}
start = q;
}
There is some basic pattern matching available through using LIKE, where % matches any number and combination of characters, _ matches any one character, and [abc] could match a, b, or c... There is more info on the MSDN site.
I don't think the problem is the dependencies. I guess you are getting that error on your IDE. Then just refresh it. If it's eclipse, try running Maven->Update Dependencies
I forgot to use var
on my item variable
Incorrect code:
var itemCreateInfo = new SP.ListItemCreationInformation();
item = list.addItem(itemCreateInfo);
item.set_item('Title', 'Haytham - Oil Eng');
Correct code:
var itemCreateInfo = new SP.ListItemCreationInformation();
var item = list.addItem(itemCreateInfo);
item.set_item('Title', 'Haytham - Oil Eng');
The problem with jeet's answer is that you load all bytes of the image into a byte array, which will likely crash the app in low-end devices. Instead, I would first write the image to a file and read it using Apache's Base64InputStream class. Then you can create the Base64 string directly from the InputStream of that file. It will look like this:
//Don't forget the manifest permission to write files
final FileOutputStream fos = new FileOutputStream(yourFileHere);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.close();
final InputStream is = new Base64InputStream( new FileInputStream(yourFileHere) );
//Now that we have the InputStream, we can read it and put it into the String
final StringWriter writer = new StringWriter();
IOUtils.copy(is , writer, encoding);
final String yourBase64String = writer.toString();
As you can see, the above solution works directly with streams instead, avoiding the need to load all the bytes into a variable, therefore making the memory footprint much lower and less likely to crash in low-end devices. There is still the problem that putting the Base64 string itself into a String variable is not a good idea, because, again, it might cause OutOfMemory errors. But at least we have cut the memory consumption by half by eliminating the byte array.
If you want to skip the write-to-a-file step, you have to convert the OutputStream to an InputStream, which is not so straightforward to do (you must use PipedInputStream but that is a little more complex as the two streams must always be in different threads).
Another solutions using vim (just for reference).
Solution 1:
Open file in vim vim filename
, then execute command :% normal Jj
This command is very easy to understand:
After that, save the file and exit with :wq
Solution 2:
Execute the command in shell, vim -c ":% normal Jj" filename
, then save the file and exit with :wq
.
The percent sign is escaped using a percent sign:
System.out.printf("%s\t%s\t%1.2f%%\t%1.2f%%\n",ID,pattern,support,confidence);
The complete syntax can be accessed in java docs. This particular information is in the section Conversions
of the first link.
The reason the compiler is generating an error is that only a limited amount of characters may follow a backslash. %
is not a valid character.
The Problems associated with the Black window of the emulator:
Happens when a new windows is installed. Problem associated with graphics of the windows is on the CD of windows .You have to Update windows and follow the following steps.
If Emulated Performance Graphics is (Software GLES then select it to-->Automatic)
Or If Emulated Performance Graphics is (Automatic then select it to-->Software GLES)
this alternation can solve this problem.
PHP does have authentication on the mail-command!
The following is working for me on WAMPSERVER (windows, php 5.2.17)
php.ini
[mail function]
; For Win32 only.
SMTP = mail.yourserver.com
smtp_port = 25
auth_username = smtp-username
auth_password = smtp-password
sendmail_from = [email protected]
The getRow() method retrieves the current row number, not the number of rows. So before starting to iterate over the ResultSet
, getRow()
returns 0.
To get the actual number of rows returned after executing your query, there is no free method: you are supposed to iterate over it.
Yet, if you really need to retrieve the total number of rows before processing them, you can:
ResultSet
normallyI'm a Ubuntu 16.04 user myself and I find that the ll
command is by far the easiest way to see a directory's contents. I've noticed that not all Linux distributions support this command, but there's probably a workaround/install for each distro out there.
Example:
user@user-XPS-15-9560:/$ ll
total 188
drwxr-xr-x 27 root root 4096 Jan 26 09:13 ./
drwxr-xr-x 27 root root 4096 Jan 26 09:13 ../
drwxr-xr-x 2 root root 4096 Jan 22 15:13 bin/
drwxr-xr-x 4 root root 12288 Jan 29 11:35 boot/
drwxr-xr-x 2 root root 4096 Sep 3 18:14 cdrom/
drwxr-xr-x 20 root root 4440 Feb 5 08:43 dev/
drwxr-xr-x 153 root root 12288 Feb 2 15:17 etc/
drwxr-xr-x 4 root root 4096 Sep 3 18:15 home/
...
The biggest advantage for me is that it's quick and really intuitive to use.
UPDATE: what I didn't know was that on Ubuntu it's a pre-configured alias. You can easily set it yourself by executing alias ll="ls -la"
on the command line, or by adding this entry in your .bashrc config file:
sudo nano ~/.bashrc
...add line described above and save file by pressing Ctrl+X and Y...
source ~/.bashrc
I wrote a simple wrapper around Google's .Net client library, it exposes a simpler database-like interface, with strongly-typed record types. Here's some sample code:
public class Entity {
public int IntProp { get; set; }
public string StringProp { get; set; }
}
var e1 = new Entity { IntProp = 2 };
var e2 = new Entity { StringProp = "hello" };
var client = new DatabaseClient("[email protected]", "password");
const string dbName = "IntegrationTests";
Console.WriteLine("Opening or creating database");
db = client.GetDatabase(dbName) ?? client.CreateDatabase(dbName); // databases are spreadsheets
const string tableName = "IntegrationTests";
Console.WriteLine("Opening or creating table");
table = db.GetTable<Entity>(tableName) ?? db.CreateTable<Entity>(tableName); // tables are worksheets
table.DeleteAll();
table.Add(e1);
table.Add(e2);
var r1 = table.Get(1);
There's also a LINQ provider that translates to google's structured query operators:
var q = from r in table.AsQueryable()
where r.IntProp > -1000 && r.StringProp == "hello"
orderby r.IntProp
select r;
df.isna()
return True values for NaN, False for the rest. So, doing:
df.isna().any()
will return True for any column having a NaN, False for the rest
If (as I understand) you're trying to completely block inheritance in the web config of your child application, I suggest you to avoid using the tag in web.config.
Instead create a new apppool and edit the applicationHost.config file (located in %WINDIR%\System32\inetsrv\Config and %WINDIR%\SysWOW64\inetsrv\config).
You just have to find the entry for your apppool and add the attribute enableConfigurationOverride="false"
like in the following example:
<add name="MyAppPool" autoStart="true" managedRuntimeVersion="v4.0" managedPipelineMode="Integrated" enableConfigurationOverride="false">
<processModel identityType="NetworkService" />
</add>
This will avoid configuration inheritance in the applications served by MyAppPool.
Matteo
Cron utility is an effective way to schedule a routine background job at a specific time and/or day on an on-going basis.
Linux Crontab Format
MIN HOUR DOM MON DOW CMD
Example::Scheduling a Job For a Specific Time
The basic usage of cron is to execute a job in a specific time as shown below. This will execute the Full backup shell script (full-backup) on 10th June 08:30 AM.
Please note that the time field uses 24 hours format. So, for 8 AM use 8, and for 8 PM use 20.
30 08 10 06 * /home/yourname/full-backup
In your case, for 2.30PM
,
30 14 * * * YOURCMD
To know more about cron, visit this website.
You can use arguments with default values.
def someMethod(def mandatory,def optional=null){}
if argument "optional" not exist, it turns to "null".
public static void main(String[] args) {
char[] array = "aabsbdcbdgratsbdbcfdgs".toCharArray();
char[][] countArr = new char[array.length][2];
int lastIndex = 0;
for (char c : array) {
int foundIndex = -1;
for (int i = 0; i < lastIndex; i++) {
if (countArr[i][0] == c) {
foundIndex = i;
break;
}
}
if (foundIndex >= 0) {
int a = countArr[foundIndex][1];
countArr[foundIndex][1] = (char) ++a;
} else {
countArr[lastIndex][0] = c;
countArr[lastIndex][1] = '1';
lastIndex++;
}
}
for (int i = 0; i < lastIndex; i++) {
System.out.println(countArr[i][0] + " " + countArr[i][1]);
}
}
Dockerfile (custom name and folder):
docker/app.Dockerfile
docker/nginx.Dockerfile
Build:
docker build -f ./docker/app.Dockerfile .
docker build -f ./docker/nginx.Dockerfile .
Use this to get an admin window with either bash or cmd running, from any directories context menue. Just right click on a directory name, and select the entry or hit the highlited button.
This is based on the chere tool and the unfortunately not working answer (for me) from link_boy. It works fine for me using Windows 8,
A side effect is the different color in the admin cmd window. To use this on bash, you can change the .bashrc file of the admin user.
I coudln't get the "background" version (right click into an open directory) to run. Feel free to add it.
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash]
@="&Bash Prompt Here"
"Icon"="C:\\cygwin\\Cygwin.ico"
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash\command]
@="C:\\cygwin\\bin\\bash -c \"/bin/xhere /bin/bash.exe '%L'\""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash_root]
@="&Root Bash Prompt Here"
"Icon"="C:\\cygwin\\Cygwin.ico"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash_root\command]
@="runas /savecred /user:administrator \"C:\\cygwin\\bin\\bash -c \\\"/bin/xhere /bin/bash.exe '%L'\\\"\""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd]
@="&Command Prompt Here"
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd\command]
@="cmd.exe /k cd %L"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd_root]
@="Roo&t Command Prompt Here"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd_root\command]
@="runas /savecred /user:administrator \"cmd.exe /t:1E /k cd %L\""
Use ax.yaxis.tick_right()
for example:
from matplotlib import pyplot as plt
f = plt.figure()
ax = f.add_subplot(111)
ax.yaxis.tick_right()
plt.plot([2,3,4,5])
plt.show()
function parseUtf8ToIso88591(&$string){
if(!is_null($string)){
$iso88591_1 = utf8_decode($string);
$iso88591_2 = iconv('UTF-8', 'ISO-8859-1', $string);
$string = mb_convert_encoding($string, 'ISO-8859-1', 'UTF-8');
}
}
I have struggled with this issue myself for a while and I think the reason it happens is because (for Android) there are two ways to import projects into the workspace
1) File>Import>General>Existing Project into Workspace
2) File>Import>Android>Existing Code into Workspace
The errors described here are related to method 2).
For method 1) there will be no overlap problems as long as you uncheck the "Copy Projects into Workspace" box if the project is already in the workspace.
Edit: There is a third method that wasn't in my original post.
3) File >New>Other>Android>Existing Android Project into Workspace
Multi joins in SQL work by progressively creating derived tables one after the other. See this link explaining the process:
https://www.interfacett.com/blogs/multiple-joins-work-just-like-single-joins/
Antwane's answer is correct, and this should be a comment but comments don't have enough space and do not allow formatting. :-) I just want to add that in Git, file permissions are recorded only1 as either 644
or 755
(spelled (100644
and 100755
; the 100
part means "regular file"):
diff --git a/path b/path
new file mode 100644
The former—644—means that the file should not be executable, and the latter means that it should be executable. How that turns into actual file modes within your file system is somewhat OS-dependent. On Unix-like systems, the bits are passed through your umask
setting, which would normally be 022
to remove write permission from "group" and "other", or 002
to remove write permission only from "other". It might also be 077
if you are especially concerned about privacy and wish to remove read, write, and execute permission from both "group" and "other".
1Extremely-early versions of Git saved group permissions, so that some repositories have tree entries with mode 664
in them. Modern Git does not, but since no part of any object can ever be changed, those old permissions bits still persist in old tree objects.
The change to store only 0644 or 0755 was in commit e44794706eeb57f2, which is before Git v0.99 and dated 16 April 2005.
Similarly to other languages, the fastest "modulo 2" (odd/even) operation is done using the bitwise and
operator:
if x & 1:
return 'odd'
else:
return 'even'
&
(bitwise AND) of the Number by 1 will be 1, because the last bit would already be set. Otherwise it will give 0 as output.Press i
or a
to get into insert mode, and type the message of choice
Press ESC
several times to get out of insert mode, or any other mode you might have run into by accident
to save, :wq
, :x
or ZZ
to exit without saving, :q!
or ZQ
To reload a file and undo all changes you have made...:
Press several times ESC
and then enter :e!
.
String.Format must start with zero index "{0}" like this:
Aboutme.Text = String.Format("{0}", reader.GetString(0));
As an addition to e.g. @Intrepidd s answer, in certain situations you want to use fetch
instead of []
. For fetch
not to throw an exception when the key is not found, pass it a default value.
puts "ok" if hash.fetch('key', nil) == 'X'
Reference: https://docs.ruby-lang.org/en/2.3.0/Hash.html .
A sed
or awk
solution would probably be shorter, but here's one for Perl:
perl -F/,/ -ane 'print if $F[<INDEX>] eq "<VALUE>"`
where <INDEX>
is 0-based (0 for first column, 1 for 2nd column, etc.)
You can try this sql code;
SELECT [column_1], [column_1], ...
FROM (your_table)
where date_format(record_date, '%e%c%Y') = date_format(now(), '%e%c%Y')
Call this after the print job has returned:
oShell.AppActivate "Adobe Reader"
oShell.SendKeys "%FX"
If you are building a universal library and need to support the Simulator (x86_64) then build the framework for all platforms by setting Build Active Architecture Only
to No
.
The instantclient works only by defining the folder in the windows PATH environment variable. But you can "install" manually to create some keys in the Windows registry. How?
1) Download instantclient (http://www.oracle.com/technetwork/topics/winsoft-085727.html)
2) Unzip the ZIP file (eg c:\oracle\instantclient).
3) Include the above path in the PATH.
4) Create the registry key:
[HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ORACLE]
5) In the above registry key, create a sub-key starts with "KEY_" followed by the name of the installation you want:
[HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_INSTANTCLIENT]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ORACLE\KEY_INSTANTCLIENT]
6) Now create at least three string values ??in the above key:
NLS_LANG = BRAZILIAN PORTUGUESE_BRAZIL.WE8MSWIN1252
(complete list here: http://docs.oracle.com/cd/B19306_01/install.102/b14317/gblsupp.htm)ORACLE_HOME = c:\oracle\instantclient
(the same folder in PATH)ORACLE_HOME_NAME = MY_INSTANTCLIENT
(choose any name)For those who use Quest SQL Navigator or Quest Toad for Oracle will see that it works. Displays the message "Home is valid.":
The registry keys are now displayed for selecting the oracle client:
@Rounded, A swift 5.1 property wrapper Example :
struct GameResult {
@Rounded(rule: NSDecimalNumber.RoundingMode.up,scale: 4)
var score: Decimal
}
var result = GameResult()
result.score = 3.14159265358979
print(result.score) // 3.1416
In webkit-based browsers(Safari and Chrome), -webkit-transform
is ignored on inline elements.. Set display: inline-block;
to make it work. For demonstration/testing purposes, you may also want to use a negative angle or a transformation-origin
lest the text is rotated out of the visible area.
//if you want to insert the same as first table
$qry = "INSERT INTO table (one, two, three) VALUES('$one','$two','$three')";
$result = @mysql_query($qry);
$qry2 = "INSERT INTO table2 (one,two, three) VVALUES('$one','$two','$three')";
$result = @mysql_query($qry2);
//or if you want to insert certain parts of table one
$qry = "INSERT INTO table (one, two, three) VALUES('$one','$two','$three')";
$result = @mysql_query($qry);
$qry2 = "INSERT INTO table2 (two) VALUES('$two')";
$result = @mysql_query($qry2);
//i know it looks too good to be right, but it works and you can keep adding query's just change the
"$qry"-number and number in @mysql_query($qry"")
I have 17 tables this has worked in.
Then when I do a git status it tells me that my branch is ahead by X commits (presumably the same number of commits that I have made).
My experience is in a team environment with many branches. We work in our own feature branches (in local clones) and it was one of those that git status
showed I was 11 commits ahead. My working assumption, like the question's author, was that +11 was from commits of my own.
It turned out that I had pulled in changes from the common develop
branch into my feature branch many weeks earlier -- but forgot! When I revisited my local feature branch today and did a git pull origin develop
the number jumped to +41 commits ahead. Much work had been done in develop
and so my local feature branch was even further ahead of the feature branch on the origin
repository.
So, if you get this message, think back to any pulls/merges you might have done from other branches (of your own, or others) you have access to. The message just signals you need to git push
those pull
ed changes back to the origin
repo ('tracking branch') from your local repo to get things sync'd up.
for oracle it goes like this:
select salary from employee where rownnum<=3 order by salary desc
minus
select salary from employee where rownnum<=2 order by salary desc;
Another info: If you want use a Route Constraint, imagine that you want force that parameter has int datatype, then you need use this syntax:
[Route("v1/location/**{deviceOrAppid:int?}**", Name = "AddNewLocation")]
The ? character is put always before the last } character
For more information see: Optional URI Parameters and Default Values
As stated in other posts, you can use the break keyword. One thing that was hinted at but not explained is that the keyword can take a numeric value to tell PHP how many levels to break from.
For example, if you have three foreach loops nested in each other trying to find a piece of information, you could do 'break 3' to get out of all three nested loops. This will work for the 'for', 'foreach', 'while', 'do-while', or 'switch' structures.
$person = "Rasmus Lerdorf";
$found = false;
foreach($organization as $oKey=>$department)
{
foreach($department as $dKey=>$group)
{
foreach($group as $gKey=>$employee)
{
if ($employee['fullname'] == $person)
{
$found = true;
break 3;
}
} // group
} // department
} // organization
function useOnceCall(cb, condition = true) {
const isCalledRef = React.useRef(false);
React.useEffect(() => {
if (condition && !isCalledRef.current) {
isCalledRef.current = true;
cb();
}
}, [cb, condition]);
}
and use it.
useOnceCall(()=>{
console.log('called');
})
or
useOnceCall(()=>{
console.log('isLoading');
},isLoading);
The preferred way to specify toolchain-specific options is using CMake's toolchain facility. This ensures that there is a clean division between:
Ideally, there should be no compiler/linker flags in your CMakeLists.txt files -- even within if
/endif
blocks. And your program should build for the native platform with the default toolchain (e.g. GCC on GNU/Linux or MSVC on Windows) without any additional flags.
Steps to add a toolchain:
Create a file, e.g. arm-linux-androideadi-gcc.cmake with global toolchain settings:
set(CMAKE_CXX_COMPILER arm-linux-gnueabihf-g++)
set(CMAKE_CXX_FLAGS_INIT "-fexceptions")
(You can find an example Linux cross-compiling toolchain file here.)
When you want to generate a build system with this toolchain, specify the CMAKE_TOOLCHAIN_FILE
parameter on the command line:
mkdir android-arm-build && cd android-arm-build
cmake -DCMAKE_TOOLCHAIN_FILE=$(pwd)/../arm-linux-androideadi-gcc.cmake ..
(Note: you cannot use a relative path.)
Build as normal:
cmake --build .
Toolchain files make cross-compilation easier, but they have other uses:
Hardened diagnostics for your unit tests.
set(CMAKE_CXX_FLAGS_INIT "-Werror -Wall -Wextra -Wpedantic")
Tricky-to-configure development tools.
# toolchain file for use with gcov
set(CMAKE_CXX_FLAGS_INIT "--coverage -fno-exceptions -g")
Enhanced safety checks.
# toolchain file for use with gdb
set(CMAKE_CXX_FLAGS_DEBUG_INIT "-fsanitize=address,undefined -fsanitize-undefined-trap-on-error")
set(CMAKE_EXE_LINKER_FLAGS_INIT "-fsanitize=address,undefined -static-libasan")
The D-Bus error can be fixed with dbus-launch :
dbus-launch command
Try this:
$('#foo1').html($('#foo2').children().clone());
As Hogan notes above, use an AND
instead of &
. See this tutorial for more info.
Perhaps the most ignorant answer I've posted but here goes: Use TigerVNC client/viewer and check 'Resize remote session to local window'
under Screen tab of options.
I don't know what the $%#@ TigerVNC client tells remote vncserver or xrandr or Xvnc or gnome or ... but it resizes when I change the TigerVNC Client window.
My setup:
With this the resolution changes to fit the size of the client window no matter what it is, and it's not zooming
, it's actual resolution change (I can see the new resolution in xrandr output).
I tried all I could to add a new resolution to the xrandr, but to no avail, always end up with 'xrandr: Failed to get size of gamma for output default'
error.
Versions with which it works for me right now (although I've not had issues with ANY versions in the past, I just install the latest using yum install gnome-* tigervnc-server
and works fine):
OS: RHEL 6.6 (Santiago)
VNC Server:
Name : tigervnc-server
Arch : x86_64
Version : 1.1.0
Release : 16.el6
# May be this is relevant..
$ xrandr --version
xrandr program version 1.4.0
Server reports RandR version 1.4
$
# I start the server using vncserver -geometry 800x600
# Xvnc is started by vncserver with following args:
/usr/bin/Xvnc :1 -desktop plabb13.sgdcelab.sabre.com:1 (sg219898) -auth /login/sg219898/.Xauthority
-geometry 800x600 -rfbwait 30000 -rfbauth /login/sg219898/.vnc/passwd -rfbport 5901 -fp catalogue:/e
tc/X11/fontpath.d -pn
# I'm running GNOME (installed using sudo yum install gnome-*)
Name : gnome-desktop
Arch : x86_64
Version : 2.28.2
Release : 11.el6
Name : gnome-session
Arch : x86_64
Version : 2.28.0
Release : 22.el6
Connect using Tiger 32-bit VNC Client v1.3.1 on Windows 7.
A lot of answers are deprecated so I'll update the thread and show how to change text color and backgroundcolor on ActionBar (Toolbar) and in ActionBar pop up menu.
The latest approach in Android (as of May 2018) in working with Action bar (Toolbar) is to use Theme with NoActionBar and use Toolbar instead.
so here is what you need:
In Activity (which extends AppCompatActivity) declare Toolbar:
Toolbar myToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(myToolbar);
Add Toolbar in the Activity's layout xml. Here we will set our custom (overwritten themes), note android:theme="@style/ThemeOverlay.AppTheme.ActionBar"
and app:popupTheme="@style/ThemeOverlay.AppTheme.PopupMenu"
, they will do the trick.
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:theme="@style/ThemeOverlay.AppTheme.ActionBar"
app:popupTheme="@style/ThemeOverlay.AppTheme.PopupMenu"
app:layout_constraintTop_toTopOf="parent" />
In your styles.xml you will have to overwrite those two styles to set custom colors:
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="actionBarTheme">@style/ThemeOverlay.AppTheme.ActionBar</item>
<item name="actionBarPopupTheme">@style/ThemeOverlay.AppTheme.PopupMenu</item>
</style>
<style name="ThemeOverlay.AppTheme.ActionBar" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="android:textColorPrimary">@color/action_bar_text_color</item>
<item name="android:background">@color/action_bar_bg_color</item>
</style>
<style name="ThemeOverlay.AppTheme.PopupMenu" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="android:background">@color/popup_bg_color</item>
<item name="android:textColorPrimary">@color/popup_text_color</item>
</style>
That's it folks
p.s. if you ask me I would say: YES, this whole Theme thing is a hell of a mess.
There is a third recovery mode not mentioned above. The recovery mode ultimately determines how large the LDF files become and how ofter they are written to. In cases where you are going to be doing any type of bulk inserts, you should set the DB to be in "BULK/LOGGED". This makes bulk inserts move speedily along and can be changed on the fly.
To do so,
USE master ;
ALTER DATABASE model SET RECOVERY BULK_LOGGED ;
To change it back:
USE master ;
ALTER DATABASE model SET RECOVERY FULL ;
In the spirit of adding to the conversation about why someone would not want an LDF, I add this: We do multi-dimensional modelling. Essentially we use the DB as a large store of variables that are processed in bulk using external programs. We do not EVER require rollbacks. If we could get a performance boost by turning of ALL logging, we'd take it in a heart beat.
This code can be used with timezone
javascript:
let minToHm = (m) => {_x000D_
let h = Math.floor(m / 60);_x000D_
h += (h < 0) ? 1 : 0;_x000D_
let m2 = Math.abs(m % 60);_x000D_
m2 = (m2 < 10) ? '0' + m2 : m2;_x000D_
return (h < 0 ? '' : '+') + h + ':' + m2;_x000D_
}_x000D_
_x000D_
console.log(minToHm(210)) // "+3:30"_x000D_
console.log(minToHm(-210)) // "-3:30"_x000D_
console.log(minToHm(0)) // "+0:00"
_x000D_
minToHm(210)
"+3:30"
minToHm(-210)
"-3:30"
minToHm(0)
"+0:00"
As it turns out, the recent WebRTC extension of HTML5 allows javascript to query the local client IP address. A proof of concept is available here: http://net.ipcalf.com
This feature is apparently by design, and is not a bug. However, given its controversial nature, I would be cautious about relying on this behaviour. Nevertheless, I think it perfectly and appropriately addresses your intended purpose (revealing to the user what their browser is leaking).
I tested bits and pieces of the following, but not the complete rule set in its entirety, so if you run into trouble with it let me know and I'll dig around a bit more. However, assuming I got everything correct, you could try something like the following:
RewriteEngine On
# Check if this is the noredirect query string
RewriteCond %{QUERY_STRING} (^|&)noredirect=true(&|$)
# Set a cookie, and skip the next rule
RewriteRule ^ - [CO=mredir:0:%{HTTP_HOST},S]
# Check if this looks like a mobile device
# (You could add another [OR] to the second one and add in what you
# had to check, but I believe most mobile devices should send at
# least one of these headers)
RewriteCond %{HTTP:x-wap-profile} !^$ [OR]
RewriteCond %{HTTP:Profile} !^$
# Check if we're not already on the mobile site
RewriteCond %{HTTP_HOST} !^m\.
# Check to make sure we haven't set the cookie before
RewriteCond %{HTTP:Cookie} !\smredir=0(;|$)
# Now redirect to the mobile site
RewriteRule ^ http://m.example.org%{REQUEST_URI} [R,L]
I had a similar problem:
docker: Error response from daemon: OCI runtime create failed: container_linux.go:346: starting container process caused "exec: \"sh\": executable file not found in $PATH": unknown.
In my case, I know the image works in other places, then was a corrupted local image.
I solved the issue removing the image (docker rmi <imagename>
) and pulling it again(docker pull <imagename>
).
I did a docker system prune
too, but I think it's not mandatory.
I also faced the same issue you just need to add the library , Junit Library is already provided along with Eclipse so you just need to follow below
Build Path > Configure Build Path > library > Add library > JUnit > Next > finish
It works for me
The Jayrock RPC library is a great tool for doing this in a nice familliar way for C# developers. It allows you to create a .NET class with the methods you require, and add this class as a script (in a roundabout way) to your page. You can then create a js object of your type and call methods as you would any other object.
It essentially hides away ajax implementation and presents RPC in a familliar format. Mind you the best option really is to use ASP.NET MVC and use jQuery ajax calls to action methods - much more concise and less messing about!
Instead of using a subquery, you could use two separate queries, one to get the number of rows and the other to select the random rows.
SELECT COUNT(id) FROM users; #id is the primary key
Then, get a random twenty rows.
$start_row = mt_rand(0, $total_rows - 20);
The final query:
SELECT * FROM users ORDER BY name ASC LIMIT $start_row, 20;
In case someone is interested in dplyr
solution, it's very intuitive:
dt <- dt %>%
slice(1:4)
Set an EmptyBorder
around your JPanel
.
Example:
JPanel p =new JPanel();
p.setBorder(new EmptyBorder(10, 10, 10, 10));
Volatile tells the compiler not to optimize anything that has to do with the volatile variable.
There are at least three common reasons to use it, all involving situations where the value of the variable can change without action from the visible code: When you interface with hardware that changes the value itself; when there's another thread running that also uses the variable; or when there's a signal handler that might change the value of the variable.
Let's say you have a little piece of hardware that is mapped into RAM somewhere and that has two addresses: a command port and a data port:
typedef struct
{
int command;
int data;
int isbusy;
} MyHardwareGadget;
Now you want to send some command:
void SendCommand (MyHardwareGadget * gadget, int command, int data)
{
// wait while the gadget is busy:
while (gadget->isbusy)
{
// do nothing here.
}
// set data first:
gadget->data = data;
// writing the command starts the action:
gadget->command = command;
}
Looks easy, but it can fail because the compiler is free to change the order in which data and commands are written. This would cause our little gadget to issue commands with the previous data-value. Also take a look at the wait while busy loop. That one will be optimized out. The compiler will try to be clever, read the value of isbusy just once and then go into an infinite loop. That's not what you want.
The way to get around this is to declare the pointer gadget as volatile. This way the compiler is forced to do what you wrote. It can't remove the memory assignments, it can't cache variables in registers and it can't change the order of assignments either:
This is the correct version:
void SendCommand (volatile MyHardwareGadget * gadget, int command, int data)
{
// wait while the gadget is busy:
while (gadget->isbusy)
{
// do nothing here.
}
// set data first:
gadget->data = data;
// writing the command starts the action:
gadget->command = command;
}
Similar to Julien's answer above, I had success with the following:
fig, ax = plt.subplots(figsize=(10,4))
for key, grp in df.groupby(['ticker']):
ax.plot(grp['Date'], grp['adj_close'], label=key)
ax.legend()
plt.show()
This solution might be more relevant if you want more control in matlab.
Solution inspired by: https://stackoverflow.com/a/52526454/10521959
You can also do this by passing function with onclick event
<a onclick="getColor(this);" color="red">
<script type="text/javascript">
function getColor(el)
{
color = $(el).attr('color');
alert(color);
}
</script>
I suggest
l = re.compile("(?<!^)\s+(?=[A-Z])(?!.\s)").split(s)
Check this demo.
if(!empty($youtube) && empty($link)) {
}
else if(empty($youtube) && !empty($link)) {
}
else if(empty($youtube) && empty($link)) {
}