Hello,

I have a model composed of a handful of differential equations that I wanted to fit to some data. The resultant fit seemed very nice (R^2=0.981) and the values seemed to match my overall expectations. The issue was the standard error the Parameter table returned. The error was fine for most of the parameters but came back as zero for the value m1. I tried playing with the settings, adjusting the Tolerance, Working Precision, etc. Nothing seems to change that standard error value to something realistic. This is especially frustrating when, again, the returned values for the parameters seem pretty good. Any thoughts? Thanks in advance!