Curve fitting

[abevise]

Hi, 

I need a VI that fits a curve like in the picture. I was wondering if someone had a finished VI that does that. The function does not need to be like in the picture but I need that linearization. I checked the forums and did not find any help so I decided to ask. If you have time please reply. 

Thanks.

[Bob_Schor]

Do you want to learn LabVIEW so that you can write such functions yourself?  If so, I'd advise spending time with the LabVIEW Tutorial material described in the upper right corner of the LabVIEW Forum's Home Page.  Come back here if you "get stuck", and be sure to post your VI so we can provide targeted help to you.

Otherwise, I suggest you post your request in the "LabVIEW Developers Seeking Employment" Forum (listed farther down the list of Forums under Special Interest Boards).

Bob Schor

[altenbach]

Piecewise linear interpolation has nothing to do with fitting. Where do the data points come from? Once you have those, you can use interpolation to get all other values withing the valid x range.