Using INDEX to filter top N values within a category

This video is the third in a series of videos which aim to explain the use of the index() function in Tableau – specifically for using it to provide a rank of data points.

If you are new to the subject, and have not yet watched the previous videos, I suggest you watch these first:

Getting started with index for ranking values

Using index to rank values within a category

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In this video, we demonstrate how to make use of the INDEX function to create a rank which provide a TOP N filter within a category