Variable class upgrades - abstract classification
We need the ability to create variables with multiple different categorizations. E.G. QE/RES/DIS/2p2h/OTH or /QELike-QE/QELike-RES/QELike-DIS/QELIke-2p2h/QELike-OTH/QELikeNot
Each set of categories should sum up to the total MC. Mechanisms to ensure that would be good. How to persist the histograms. Naming conventions. Enum storing/strings (maps).
1) Dan bubble diagram how CCQENu does this and describe the categories of the FHC analysis
2) Propose possible schema for MAT style Variables.
3) Bring this back to Data Preservation to solve the Histfolio not storing categories.