I can't really change the type of function since I need it in the form y = A1*exp(-x/t1) + A2*exp(-x/t2) + y0
The one that did not converge has too big bonds
y0 -21656,44468 ± 215638,46693
A1 3,1442 ± 0,02977
t1 70,10402 ± 1,29334
A2 21657,39982 ± 215638,46692
t2 4,32545E7 ±...
Thanks for the explanation. I am working with tapered optical fibers. For a sw simulation I need to approximate them with a function. My idea was that the SW would do the best fit possible, and the error would be the fit minus the actual measured value (input value). I thought this is where was...
Hello everyone,
I would be happy if someone explained the small reduced chi squared value to me. I have fitted a set of measured data with an exponential function, which I need for some sw calculations. The fit seams great, the origin sw also provides the reduced chi squared, but it is very...