In this blog I would show you how to get the top three sub categories under each Category. For this we would use the sample dataset provided tableau (can be downloaded from here : Sample Superstore ) .
Basically what we would want to achieve is the top three selling sub categories under Furniture , Office Supply and Technologies.
Following is what the sub category sales looks like across all Categories:
And this is what we would like to achieve :
The trick to get this is to use the Index function in tableau. With the use of index function we create a ranking in the sales of the subcategories within category. The Index function then needs to be put in filter mark , Computed Across Sub Categories , and the range for it has to be set up ( 1 to 3 in this case ).
The following gif explains the process :
Do let me know if you are not able to follow the steps.