Hi,
I am plotting a a signal and background with a combined fit and then extracting the parameters to plot separate fits for the background and signal components, closely following the example:
root.cern.ch/root/html534/tutori … emo.C.html
I need to find the integral of the background and signal parts along with their corresponding errors. I have no problem with the integral, but it is the calculation of the corresponding errors I am struggling with. How should I go about doing this?
I have read root.cern.ch/root/html/TF1.html# … alErrorand see that in order to use this i need pass the covariance matrix for the fit, however due to extracting the parameters with their errors from the combined fit I do not have a covariance matrix…
I hope this makes sense, thanks!
John