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Analysis Techniques to Determine Position Relative to Curve

Question asked by rjfaulco on Oct 6, 2020
Latest reply on Oct 9, 2020 by ChristophRose

I am fairly new to Pi AF and its capabilities and am trying to learn the best way to accomplish my goals. If this question is not appropriate for this forum then I apologize, but I am running out of resources that may be able to help with this task. Any help would be extremely helpful at this point.


I am trying to determine the distance away from a reference curve our process is at any given moment. I have a set of data pairs that when the process is to the right of, we are performing under specification, and when the process is to the left of the curve, we are outperforming. I want this distance to be our metric - the larger the number, the worse we are. 


Right now I have this set up nicely in excel, which I have attached for reference, but I'm having a hard time thinking of ways to put the logic in Pi AF.


Any advice on where to go or options to consider would be appreciated. Thank you