TF3 Projection and then TF2 Integral for a fit

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Hi Experts,

Recently, I have been trying to fit some data using a TF2 integral, now the TF2 function itself is a projection from a TF3 function. I am attaching the code here for reference.
The issue is that it gives me segmentation fault and I think it’s because of a memory issue, because I have used TFClass too many times. Please help me find a fix.

Thank you and Cheers,
Rutik
Single fit.zip (2.4 KB)

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@moneta could you please have a look? Thanks!

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Dear Rutik,
please find attached a working version of your macro with several corrections.
Main modification is in the TF3Projector class for functions with parameters.
Also, the number of parameters of your function is 5, not 4.
BWModified_Proton1.C (4.2 KB)

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Dear Rutik,
here is a simpler version of your macro,
without use of TF3Projector.
BWModified_Proton2.C (2.7 KB)

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Hi @smgrig,
Yes, it works perfectly! Thank you!
Best,
Rutik

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