I am in the case where I have to create a pie chart, but, the expressions are not each other related and there are no dimensions.
There are two expressions :
1) =Sum(ENTREE_FICHIER) and expression label is "RECUS"
2) =If(Sum(DIFFERENCE_FICHIER) < 0,0, Sum(DIFFERENCE_FICHIER)) and expression label is "PERDUS"
The pie is correctly displayed, BUT, I can't click on a part to automatically select these elements.... The reason is that there are no dimensions in this pie.
I don't know if it's possible to create calculated dimensions in my case...