
Re: how to insert exponential trendlines?
Lal_Babu_Shaik Nov 12, 2018 12:26 PM (in response to ccoutinho)Hi Carlos
AF Analysis equation or AF table with values with PI Vision XY plot should give output you are expecting.
Thanks,
Lal Babu

Re: how to insert exponential trendlines?
ccoutinho Nov 12, 2018 3:48 PM (in response to Lal_Babu_Shaik)Hello Lal Babu Shaik,
Thank you for your answer
I'm sorry but I never used AF Analysis Equation and I really don't know where I find it. In Af analysis equation is there any trendline suggestion?
Thanks,
Carlos


Re: how to insert exponential trendlines?
TimCarmichael Nov 13, 2018 1:26 PM (in response to ccoutinho)2 of 2 people found this helpfulCarlos, in your question, you mentioned exponential trendlines, parabolic and linear. To men, that sounds like what could be referred to as a fixedreference 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.