I have fitted the data sets with two Gaussian PDFs in roofit.
RooRealVar sfrac(“sfrac”,“Area fraction”,0.5,0.0 ,1.0);
After the fit, there are two sigmas found as a result. Here my question is what will be the ideal way to calculate the effective uncertainty from the fit.
I am thinking to calculate the, Effective sigma = sfracsigma1 + (1-sfrac)sigma2 here in roofit. Please let me know someone whether the above way is correct or they will be added in quadrature Effective sigma = sqrt( sfrac(sigma1)^2 + (1-sfrac)(sigma2)^2 ). I am somehow confused about this now.
Thanks in advance.
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