Book an Ntuple

The arguments are NOT the same as for CALL HBOOKN (...):

Input arguments:

ID

Ntuple ID number - nonzero integer

CHTITL

Ntuple title - character variable up to 80 characters

NVAR

number of variables

TAGS

name of character array of dimension NVAR containing names for variables to be stored.

CALL QBOOKN (ID,CHTITL,NVAR,TAGS)

corresponds to :

CALL HBOOKN (ID,CHTITL,NVAR,'ALPHA',1024,TAGS).

'ALPHA' is the ZEBRA directory name referring to the file given on the HIST card (5.2.1). See 5.1.1 (QBOOK1 vs. HBOOK1) : Existing Ntuples will not be overwritten (see 5.1.1).