I am filling and then scaling a TH1D, and the errors behave as expected (sqrt(n) before scaling, multiplied by scaling factor after), but then I use the GetCumulative() method, and the errors of the original histogram get recalculated, I’m not sure how and why.
The errors do not change if the histogram wasn’t rescaled.
Maybe there is a good statistical reason not to use GetCumulative for a rescaled histogram, but even if there is, it seems wrong to me that the histogram itself should be affected.
ROOT Version: 6.24 Platform: CentOS 7 Compiler: Not Provided