pie chart and expressions

[#1]

Hi all,

I would like to have a simple pie chart in my application. Assume that I've these fields :

What I want is a pie chart with the dimension "Group" and the expression : Max(Data)-Min(Data)

The problem is that if there is more than 1 device in 1 group I would like to Max(Date)-Min(Data) (Device1) + Max(Date)-Min(Data) (Device2) and so on

Maybe there is a way with the function way ?

Thank you

[deepakk · Accepted solution]

hi,

I hope the attach helps you out.