combo chart set analysis for the difference between values

[jasonseril]

Hello again,

I have attached a qvw file with combo chart. I would like to add another expression that displays the difference between previous day value. Say, Day 2 - day 1 = 30; day 3 - day 2 = 50 and day 4 - day 3 = -10, plot these values to the chart. What would be the set analysis for this?

thanks in advance.

jason

[#2 · Accepted solution]

Hi,

If you want to calculate difference you don't need to use set analysis

Just update the chart expression to =sum(value)-above(value).

Rgds

[jasonseril]

ok, i got it. thank you very much spartor.

jason