Hi there

I'd like to create a trendline in a graph like we usually do in plans with exponential trendlines, parabolic and linear.

Is there any way to do this through PI or I should create an equation that does that?

Thanks!

Hi there

I'd like to create a trendline in a graph like we usually do in plans with exponential trendlines, parabolic and linear.

Is there any way to do this through PI or I should create an equation that does that?

Thanks!

- 2 people found this helpful
Carlos, in your question, you mentioned exponential trendlines, parabolic and linear. To men, that sounds like what could be referred to as a fixed-reference curve, or fixed data set.

Since the PI system is a time based system, all data points must have a time reference. A fixed data set, by definition, generally DOESN'T have a time reference.. but you require it to have one.

A few years back, I wrote an article explaining how to accomplish this, a link follows.

Hi Carlos

AF Analysis equation or AF table with values with PI Vision XY plot should give output you are expecting.

Thanks,

Lal Babu