Command-line Unix ASCII-based charting plotting tool

Question

Is there a good command-line UNIX charting   graphing   plotting tool out there   I m looking for something that will plot xy points on an ASCII graph   Just to clarify  I m looking for something that will output a graph in ASCII  like ascii-art style   so I can use it over an interactive shell session without needing X

User · Answer

gnuplot is the definitive answer to your question.

I am personally also a big fan of the google chart API, which can be accessed from the command line with the help of wget (or curl) to download a png file (and view with xview or something similar). I like this option because I find the charts to be slightly prettier (i.e. better antialiasing).

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I found a tool called ttyplot in homebrew  It s good  https   github com tenox7 ttyplot

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feedgnuplot is another front end to gnuplot  which handles piping in data         seq 5   awk   print 2  1   1  1           feedgnuplot --lines --points --legend 0  data 0  --title  Test plot  --y2 1                   --terminal  dumb 80 40  --exit                                       Test plot       10   ------ -------- ------- ------- ------- -------- ------- ------ A 25                                                                                                                                         data 0   A                                                                                        9                                                                                                                                                                                                                                                                                                         20       8                                                   A                                                                                                                                                                                                                                                                                                               B                       7                                                                                                                                                 15                                                                                                                                                               6                                  A                                                                                                                                                                                                                                                                      10       5                                                                                                              B                                                                                                                                                                                                4                  A                                                                                                                                                                                                          5                                                                                                      B                                                        3                                                                                                                                                                                                                                     B                                                                         2 A ------ -------- ------- ------- ------- -------- ------- ------   0         1      1 5       2      2 5      3      3 5       4      4 5      5

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Another simpler lighter alternative to gnuplot is ervy  a NodeJS based terminal charts tool   Supported types  scatter  XY points   bar  pie  bullet  donut and gauge   Usage examples with various options can be found on the projects GitHub repo

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Here is my patch for eplot that adds a -T option for terminal output   --- eplot       2008-07-09 16 50 04 000000000 -0400     eplot       2017-02-02 13 20 23 551353793 -0500    -172 7  172 10                                            com com  set terminal postscript color  n                                           o  DoPDF   true  -                                 ---- Specify a custom output file                                 when   -T   --terminal                                           com com  set terminal dumb  n                                       ---- Specify a custom output file                                 when   -o   --output                                            o  OutputFileSpecified   checkOptArg xargv i                                          i i 1                                      i i 1   Using this you can run it as eplot -T to get ASCII-graphics result instead of a gnuplot window

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Another option I ve just run across is bashplotlib   Here s an example run on  roughly  the same data as my eplot example       gt  git shortlog -s -n   awk   print  1     hist   33    o  32    o  30    o  28    o  27    o  25    o  23    o  22    o  20    o  18    o  16    o  15    o  13    o  11    o  10    o   8    o   6    o   5    o   3    o o     o   1    o o     o o       o   0    o o o o o o       o     ----------------------  -----------------------         Summary         -----------------------     observations  50      min value  1 000000      mean   519 140000     max value  3207 000000  -----------------------   Adjusting the bins helps the resolution a bit       gt  git shortlog -s -n   awk   print  1     hist --nosummary --bins 40   18    o        o  17    o  16    o  15    o  14    o  13    o  12    o  11    o  10    o   9    o   8    o   7    o   6    o   5    o   o   4    o   o o   3    o o o o   o   2    o o o o   o   1    o o o o   o                     o       o   0    o o o o o o           o     o   o o   o o                                 o        o o o o o o           o     o   o o   o o                                 o     --------------------------------------------------------------------------------

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Plots in a single line are really simple  and can help one see patterns of highs and lows  See also pysparklines   Does anyone know of unicode slanting lines  which could be fit together to make line  not bar  plots        usr bin env python   - - coding  utf-8 - -  from   future   import division import numpy as np    version      2015-01-02 jan  denis                                                                                     def onelineplot  x  chars u             sep                numbers - gt  v simple one-line plots like  f                                           osc 47                                        rosenbrock f                                                  osc 58                                        rastrigin f                                              osc 90                                               ackley  Usage      astring   onelineplot  numbers  optional chars  sep     In      x  a list   tuple   numpy 1d array of numbers     chars  plot characters  default the 8 Unicode bars above     sep     or     between plot chars  How it works      linscale x  - gt   ints 0 1 2 3      - gt   chars              See also  https   github com RedKrieg pysparklines              xlin    linscale  x  to  - 49  len chars  - 1    49              or quartiles 0 - 25 - 50 - 75 - 100     xints   xlin round   astype int      assert xints ndim    1  xints shape    todo  2d     return sep join   chars j  for j in xints      def  linscale  x  from  None  to  0 1             scale x from  - gt  to  default min  max - gt  0  1         x   np asanyarray x      m  M   from  if from  is not None           else  np nanmin x   np nanmax x       if m    M          return np ones like x    np mean  to       return  x - m     to 1  - to 0                M - m     to 0                                                                                     if   name         main        standalone test --     import sys      if len sys argv   gt  1     numbers on the command line  may be   cat myfile          x   map  float  sys argv 1         else          np random seed  0           x   np random exponential  size 20        print onelineplot  x

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See also  asciichart  implemented in Node js  Python   Java  Go and Haskell

User · Answer

Try gnuplot  It has very powerful graphing possibilities   It can output to your terminal in the following way   gnuplot gt  set terminal dumb Terminal type set to  dumb  Options are  feed 79 24  gnuplot gt  plot sin x      1   ----------------  --------------- ----  ----------- --------  -----                                                                sin x            0 8                                                                                                                                                       0 6                                                                                                                                                       0 4                                                                                                                                                       0 2                                                                                                                                                         0                                                                                                                                                      -0 2                                                                                                                                                      -0 4                                                                                                                                                      -0 6                                                                                                                                                      -0 8                                                                                                                                                        -1   -----  --------- ----------  ---- ---------------   ---------------       -10               -5                0                 5                10

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Check the package plotext which allows to plot data directly on terminal using python3  It is very intuitive as its use is very similar to the matplotlib package   Here is a basic example     You can install it with the following command   sudo -H pip install plotext     As for matplotlib  the main functions are scatter  for single points   plot  for points joined by lines  and show  to actually print the plot on terminal   It is easy to specify the plot dimensions  the point and line styles and whatever to show the axes  number ticks and final equations  which are used to convert the plotted coordinates to the original real values    Here is the code to produce the plot shown above   import plotext plot as plx import numpy as np  l 3000 x np arange 0  l  y np sin 4 np pi l np array x   np exp -0 5 np pi l x   plx scatter x  y  rows   17  cols   70  plx show clear   0      The option clear True inside show is used to clear the terminal before plotting  this is useful  for example  when plotting a continuous flow of data   An example of plotting a continuous data flow is shown here     The package description provides more information how to customize the plot   The package has been tested on Ubuntu 16 where it works perfectly  Possible future developments  upon request  could involve extension to python2 and to other graphical interfaces  e g  jupiter   Please let me know if you have any issues using it  Thanks    I hope this answers your problem

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Also  spark is a nice little bar graph in your shell

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While gnuplot is powerful  it s also really irritating when you just want to pipe in a bunch of points and get a graph   Thankfully  someone created eplot  easy plot   which handles all the nonsense for you   It doesn t seem to have an option to force terminal graphs  I patched it like so   --- eplot orig  2012-10-12 17 07 35 000000000 -0700     eplot       2012-10-12 17 09 06 000000000 -0700    -377 6  377 7                      ---- print the options                 com  echo   n  getStyleString  oc  MiscOptions                   com com  set multiplot  n  if doMultiPlot                 com com  set terminal dumb  n                  com com  plot    oc  Range   comString   n   gnuplot -persist                  printAndRun com                    ---- convert to PDF   An example of use       gt  git shortlog -s -n   awk   print  1     eplot 2 gt   dev null     3500   ------- ------- -------- -------- ------- -------- ------- -------                                      tmp eplot20121012-19078-fw3txm-0                                                                                         3000                                                                                                                                                                                                                                   2500                                                                                                                                                                                                                                     2000                                                                                                                                                        1500                                                                                                                                                                                                                                      1000                                                                                                                                                                                                                                       500                                                                                                                                                                                                                                         0   ------- ------- -------- -------- -----                                     0        5       10       15       20      25       30      35       40

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You should use gnuplot and be sure to issue the command  set term dumb  after starting up   You can also give a row and column count  Here is the output from gnuplot if you issue  set term dumb 64 10  and then  plot sin x            1   -----------    ----------- --   ------- ------    --     0 6                                          sin x             0 2                                                              0                                                           -0 4                                                           -0 8                                                             -1   --    ------ -------   --- ----------    -----------        -10           -5             0            5             10     It looks better at 79x24  don t use the 80th column on an 80x24 display   some curses implementations don t always behave well around the last column    I m using gnuplot v4  but this should work on slightly older or newer versions

[unix] Command-line Unix ASCII-based charting / plotting tool

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