Rename a column in an Ntuple

CALL HRENAME (ID1,CHOLD,CHNEW)

Action: Renames a column in an Ntuple. CHOLD of ntuple ID into CHNEW. Duplicate the definition of an Ntuple into a new Ntuple with the same definitions as the original one, but with 0 entries.

Input parameter description:

ID1

Identifier of Ntuple

CHOLD

Character variable with old column name

CHNEW

Character variable with new column name