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How to plot the slope of a trend

Question asked by JR_NL on Feb 6, 2017
Latest reply on Feb 6, 2017 by tramachandran

Hi all,


I am a little new to the beautiful world of PI Processbook and have therefore an easy question. We have measurements on our site, and one of them is the level indicator drum which is drained often:




I would like to plot the slope (thus the flow) in the same plot. This must be possible and pretty easy, but I dont know how.


Does anybody know?

Thanks! =)