First of all, I would like to thanks everybody here who is helping me a lot. I'm learning too much here, and I believe I'm working with QlikView 12 horas a day, for more than a month. This software is amazing!
Now my question is: How can I calculate (via expression), the linear trendline, starting from a specific date ('18/03/2020')?
Look at that:
In this case, QlikView is calculating the overall Trendline (based on my dates selection), but I would like to get something like this - see below:
I'm currently working with the following expression, but I'm not getting the correct result: