Combined fit

I’m trying to perform a combined fit of three gaussian functions integrated over a square domain. Unfortunately, the data set I have are asymmetric and so I introduced a parameter (alpha) to taking into account this asymmetry. The first fit is quite perfect but the other two not.
I have no idea how to improve the second and third fits.
Can anyone help me? I would be immensely happy.
Thank you in advance,
combinedFit_real.C (12.3 KB)
2023-03-02_scan_12.txt (4.8 KB)
2023-02-28_scan_37.txt (4.8 KB)
2023-02-28_scan_48.txt (4.8 KB)

I guess @moneta can help.

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.