Fix constexpr problems when creating reflex dict
sync
Add external variable setter. The new variable is saved to ttree
Save HLTPtAve in the balance tree
sync
static-> static const to match closer constexpr
Add protection in cases when there is no data sample
inici - balance vs hltPtAve util script
plot histos
Add normalization factor as a tree weight
Additionall cut from cli
sync