Yes i know the "+" but my problem is to affect a color automaticly.
I created a table in the script :
Load * Inline [
Class , R , G , B
1 , 100 , 50 , 25 ,
2 , ....
In the graphic, I use an expression to transform sum(var2) in 1, 2 , ...
My problem is to link the result of the expression with BlueColor table.
Maybe you have a solution