Here, I am trying to compare the sales growth of three products launched in three different years.
To show the same base (starting point) of 0 across all the products for Indexation, I need to depict the x-axis in the below method, but I am unable to do so.
M1 = launch month (e.g., Jan 2016 for Product 1, March 2017 for Product 2 etc.)
M2 = M1 + 1 month
M3 = M2 + 1 month
.
.
Mn = latest month
My current graph (attach - Qlikquery) shows all the time periods starting from the launch of the product 1 (the second product launched at a later date). I am looking for some kind of graph like given in the attachment (Index chart) where all products starts at 0 (launch month) It would be great if some one can help me
