Add classes for various sets of systematics at Histogramming

MoAly98 / Pythium

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Add classes for various sets of systematics at Histogramming #6

Open MoAly98 opened 3 years ago

MoAly98 commented 3 years ago

We have various types of systematic uncertainties that need to be considered when building histograms:

Classes to be built:

[x] 1D Weight variations (shape, norm or shapenorm)
[ ] Ndim Weight variations (shape, norm or shapenorm)
[x] Tree variations (shape, norm or shapenorm)
[x] Ntuple variations (shape, norm or shapenorm)
[ ] Overall Variations (norm)

MoAly98 commented 2 years ago

The classes are in-place as sub-classes of a _Systematics class. There are still places in the histogram creation task graph where they are not properly propagated:

Treatment needed for:

[ ] Retrieving variables needed from input: Line
[ ] Ndim weight variations for n-dim histograms
[ ] A post-processing step for norm variations? At the moment histograms are not created form scaling systematics