I'm new to Tableau, and here I am working with my coxcomb chart according to Bora Beran.
So I create a yearly sales of product category. What I want to ask is:
1. How to create borders for each slice? Like Bora Beran made
2. Why some years only have 1 or 2 partitions (2 categories) instead of all 3, because if I make it to straight table, each year should has all of 3 categories in it
I don't have no idea why and what's wrong with my formula *I copy and paste all formulas from Bora Beran
Bora Beran might be able to help but I imagine we'd need a packaged workbook with some sample data so we can try to help.
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