change parametric plot setup programmatically

[hata]

Hi, thank you both for your answer.

However I confirm that I do use the correct plot setup variables Xmin, Xmax, Ymin, Ymax.
The issue is, as described in my original post:
I change Xmin, Xmax, Ymin, Ymax variables programmatically before invoking the PLOT view, but this has no effect because the HP PRIME changes them again when I invoke the PLOT view (I want to control these values myself from within an application).
Is there a way to let the PRIME use the values I set myself ?
Thanks