exponential with offset fitting
Wed, 06/10/2020 - 10:22 am
I have a simple data set that appears to be two parts, a linear region followed by a section that appears to be exponential. I have set cursors to delineate the region to fit with an exponential. Since it is an increasing exponential I have seeded the coefficients with some values, 0.1,0.1, and -0.001. Fit to an exponential is passable, but not great. When I try the same thing but substituting the exponential with offset as recommended it fails on iteration 1. I would actually prefer the offset version of the fit. What is amiss? The file is attached.