just started using tableau and I'm clearly messing up something fundamental.
just using the superstore data, i built a simple bar chart of customers names to sales, by customer region. I've colored the bars by product category. Here's the list sorted alphabetically, by first name.
now I want to sort the names by sum of sales, but the result is clearly not right. I right click on customer filed, I click on sort, descending, by value sum (Sales), and the resulting sort is this:
Generally descending, but it's not a uniform sort. What have I messed up?