Book a 1-dimensional histogram

The arguments are the same as for CALL HBOOK1 (...):

Input arguments:

ID

histogram ID number - nonzero integer

CHTITL

histogram title - character variable up to 80 characters

NX

number of bins

XMI

lower edge of lowest bin

XMA

upper edge of highest bin

VMX

normally set equal to 0.- see HBOOK manual for details.

HBOOK1 always deletes an existing histogram and creates a new one. To make it possible to update existing histograms (see 4.7.1), QBOOK1 creates a new histogram only if it does not yet exist. An existing histogram remains unchanged. Therefore, whenever you want to update histogram files, use QBOOK1 instead of HBOOK1. For new histograms, QBOOK1 and HBOOK1 are identical.