+------------------------+ | CALL HID1 (IDVECT*,N*) | +------------------------+Action: Returns the number and identifiers of all existing 1-dimensional histograms.
+------------------------+ | CALL HID2 (IDVECT*,N*) | +------------------------+
Action: Returns the number and identifiers of all existing 2-dimensional histograms. (see HID1).
+--------------------------+ | CALL HIDALL (IDVECT*,N*) | +--------------------------+
Action: Returns the number and identifiers of all existing histograms. (see HID1).