how to caculate values of dimentions choosed randomly

[#1]

I want to make a combo chart as below, could anyone help me with it please?

It has 4 dimentions (A, B,C, D) in a dimention group.

When I choose A and B, it shows the monthly value bars of both A and B, and the percentage line of A/B(divide A by B).

If I choose A,C or B,D or any two of those, the bars and line will change accordingly.

How to wirte the caculation script of line chart?

Thanks a lot.

Anna

[maxgro]

could you post the qlik doc?

[#3]

Thanks Massimo,

Please find attached qvw file.