Error using GetConfidenceIntervals

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Hi

I am trying to get a confidence interval of a fit and I have attached the code showing the attempt.

I get an error like this: Error in TBackCompFitter::GetConfidenceIntervals: Cannot compute confidence intervals with an invalide fit result.
I am not exactly sure to fix this. Please helpFit_Conf.C (1.2 KB) Both344and244.txt (308 Bytes)

2

Hello @lum_totzin,

That GetConfidenceIntervals() call looks wrong to me. I think that there are some examples in the forum on how to achieve this. You can try searching for GetConfidenceIntervals. If you cannot get it to work, please do not hesitate to write back.

Cheers,
J.