Simple Pivot Table to Count Unique Values

Question

This seems like a simple Pivot Table to learn with   I would like to do a count of unique values for a particular value I m grouping on   For instance  I have this   ABC   123 ABC   123 ABC   123 DEF   456 DEF   567 DEF   456 DEF   456   What I want is a pivot table that shows me this   ABC   1 DEF   2   The simple pivot table that I create just gives me this  a count of how many rows    ABC   3 DEF   4     But I want the number of unique values instead   What I m really trying to do is find out which values in the first column don t have the same value in the second column for all rows   In other words   ABC  is  good    DEF  is  bad   I m sure there is an easier way to do it but thought I d give pivot table a try

User · Answer

Step 1  Add a column  Step 2  Use the formula  IF COUNTIF C2  C 2410 C2  gt 1 0 1  in 1st record  Step 3  Drag it to all the records  Step 4  Filter  1  in the column with formula

User · Answer

You can make an additional column to store the uniqueness  then sum that up in your pivot table   What I mean is  cell C1 should always be 1  Cell C2 should contain the formula  IF COUNTIF  A 1  A1  A2  COUNTIF  B 1  B1  B2  gt 0 0 1   Copy this formula down so cell C3 would contain  IF COUNTIF  A 1  A2  A3  COUNTIF  B 1  B2  B3  gt 0 0 1  and so on    If you have a header cell  you ll want to move these all down a row and your C3 formula should be  IF COUNTIF  A 2  A2  A3  COUNTIF  B 2  B2  B3  gt 0 0 1

User · Answer

I usually sort the data by the field I need to do the distinct count of then use IF A2 A1 0 1   you get then get a 1 in the top row of each group of IDs  Simple and doesn t take any time to calculate on large datasets

User · Answer

My approach to this problem was a little different than what I see here  so I ll share      Make a copy of your data first  Concatenate the columns Remove duplicates on the concatenated column Last - pivot on the resulting set   Note  I would like to include images to make this even easier to understand but cant because this is my first post

User · Answer

Insert a 3rd column and in Cell C2 paste this formula   IF SUMPRODUCT   A 2  A2 A2    B 2  B2 B2   gt 1 0 1    and copy it down  Now create your pivot based on 1st and 3rd column  See snapshot

User · Answer

Excel 2013 can do Count distinct in pivots   If no access to 2013  and it s a smaller amount of data  I make two copies of the raw data  and in copy b  select both columns and remove duplicates   Then make the pivot and count your column b

User · Answer

UPDATE  You can do this now automatically with Excel 2013  I ve created this as a new answer because my previous answer actually solves a slightly different problem   If you have that version  then select your data to create a pivot table  and when you create your table  make sure the option  Add this data to the Data Model  tickbox is check  see below      Then  when your pivot table opens  create your rows  columns and values normally  Then click the field you want to calculate the distinct count of and edit the Field Value Settings    Finally  scroll down to the very last option and choose  Distinct Count      This should update your pivot table values to show the data you re looking for

User · Answer

I d like to throw an additional option into the mix that doesn t require a formula but might be helpful if you need to count unique values within the set across two different columns  Using the original example  I didn t have   ABC   123   ABC   123   ABC   123    DEF   456   DEF   567   DEF   456   DEF   456   and want it to appear as   ABC   1   DEF   2   But something more like   ABC   123   ABC   123   ABC   123   ABC   456   DEF   123   DEF   456   DEF   567   DEF   456   DEF   456   and wanted it to appear as   ABC      123    3      456    1   DEF      123    1      456    3      567    1   I found the best way to get my data into this format and then be able to manipulate it further was to use the following     Once you select  Running total in  then choose the header for the secondary data set  in this case it would be the header or column title of the data set that includes 123  456 and 567   This will give you a max value with the total count of items in that set  within your primary data set   I then copied this data  pasted it as values  then put it in another pivot table to manipulate it more easily   FYI  I had about a quarter million rows of data so this worked a lot better than some of the formula approaches  especially ones that try to compare across two columns data sets because it kept crashing the application

User · Answer

If you have the data sorted   i suggest using the following formula   IF OR A2 lt  gt A3 B2 lt  gt B3  1 0    This is faster as it uses less cells to calculate

User · Answer

You can use for helper column also VLOOKUP  I tested and looks little bit faster than COUNTIF   If you are using header and data are starting in cell A2  then in any cell in row use this formula and copy in all other cells in the same column    IFERROR IF VLOOKUP A2  A 1 A1 1 0  A2 0 1  1

User · Answer

You can use COUNTIFS for multiple criteria    1 COUNTIFS A A A2 B B B2  and then drag down   You can put as many criteria as you want in there  but it tends to take a lot of time to process

User · Answer

It is not necessary for the table to be sorted for the following formula to return a 1 for each unique value present    assuming the table range for the data presented in the question is A1 B7 enter the following formula in Cell C1    IF COUNTIF  B 1  B1 B1  gt 1 0 COUNTIF  B 1  B1 B1     Copy that formula to all rows and the last row will contain    IF COUNTIF  B 1  B7 B7  gt 1 0 COUNTIF  B 1  B7 B7     This results in a 1 being returned the first time a record is found and 0 for all times afterwards     Simply sum the column in your pivot table

User · Answer

I found an easier way of doing this  Referring to Siddarth Rout s example  if I want to count unique values in column A    add a new column C and fill C2 with formula   1 COUNTIF  A  A A2   drag formula down to the rest of the column pivot with column A as row label  and Sum column C  in values to get the number of unique values in column A

User · Answer

I found the easiest approach is to use the Distinct Count option under Value Field Settings  left click the field in the Values pane   The option for Distinct Count is at the very bottom of the list     Here are the before  TOP  normal Count  and after  BOTTOM  Distinct Count

User · Answer

See Debra Dalgleish s Count Unique Items

User · Answer

Siddharth s answer is terrific     However  this technique can hit trouble when working with a large set of data  my computer froze up on 50 000 rows    Some less processor-intensive methods   Single uniqueness check   Sort by the two columns  A  B in this example  Use a formula that looks at less data   IF SUMPRODUCT   A2  A3 A2    B2  B3 B2   gt 1 0 1      Multiple uniqueness checks  If you need to check uniqueness in different columns  you can t rely on two sorts     Instead     Sort single column  A  Add formula covering the maximum number of records for each grouping   If ABC might have 50 rows  the formula will be   IF SUMPRODUCT   A2  A49 A2    B2  B49 B2   gt 1 0 1

[excel] Simple Pivot Table to Count Unique Values

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