Ever wanted to get distinct count in Excel? You can use Pivot Table to get the answer quickly. Something like this:
Here is a simple trick to add distinct count to Excel pivot tables quickly.
Let’s say you have data like this:
As you can see, several products are repeated on each day. When you make a pivot table from this data and add product count, Excel counts all products. But we want to see just the distinct count (ie if there is a duplicate product in a day, we want to count it just once). To get distinct count in the pivot table,
These instructions work only in Excel 2016, Office 365 and Excel 2013.
- Insert a pivot table from your data
- In the create pivot dialog, enable “Add this data to data model” option.
- Once you have the pivot table canvas, add the product (or any other field for which you want to calculate distinct count) to the values area.
- Right click on the values, go to “Value field settings”.
- Summarize the value by “Distinct count”. This is the last option.
- All done!
Distinct Count in Excel Pivot Tables – Example Workbook
If you want to practice this or want to see this with an example, here is the workbook.
8 Responses to “Pivot Tables from large data-sets – 5 examples”
Do you have links to any sites that can provide free, large, test data sets. Both large in diversity and large in total number of rows.
Good question Ron. I suggest checking out kaggle.com, data.world or create your own with randbetween(). You can also get a complex business data-set from Microsoft Power BI website. It is contoso retail data.
Hi Chandoo,
I work with large data sets all the time (80-200MB files with 100Ks of rows and 20-40 columns) and I've taken a few steps to reduce the size (20-60MB) so they can better shared and work more quickly. These steps include: creating custom calculations in the pivot instead of having additional data columns, deleting the data tab and saving as an xlsb. I've even tried indexmatch instead of vlookup--although I'm not sure that saved much. Are there any other tricks to further reduce the file size? thanks, Steve
Hi Steve,
Good tips on how to reduce the file size and / or process time. Another thing I would definitely try is to use Data Model to load the data rather than keep it in the file. You would be,
1. connect to source data file thru Power Query
2. filter away any columns / rows that are not needed
3. load the data to model
4. make pivots from it
This would reduce the file size while providing all the answers you need.
Give it a try. See this video for some help - https://www.youtube.com/watch?v=5u7bpysO3FQ
Normally when Excel processes data it utilizes all four cores on a processor. Is it true that Excel reduces to only using two cores When calculating tables? Same issue if there were two cores present, it would reduce to one in a table?
I ask because, I have personally noticed when i use tables the data is much slower than if I would have filtered it. I like tables for obvious reasons when working with datasets. Is this true.
John:
I don't know if it is true that Excel Table processing only uses 2 threads/cores, but it is entirely possible. The program has to be enabled to handle multiple parallel threads. Excel Lists/Tables were added long ago, at a time when 2 processes was a reasonable upper limit. And, it could be that there simply is no way to program table processing to use more than 2 threads at a time...
When I've got a large data set, I will set my Excel priority to High thru Task Manager to allow it to use more available processing. Never use RealTime priority or you're completely locked up until Excel finishes.
That is a good tip Jen...