Two-dimensional case

CALL HBOOK2 (ID,CHTITL,NX,XMI,XMA,NY,YMI,YMA,VMX)

Action: Books a two-dimensional histogram.

Input parameter description:

ID

histogram identifier, integer

CHTITL

histogram title (character variable or constant up to 80 characters)

NX

number of channels in X

XMI

lower edge of first X channel

XMA

upper edge of last X channel

NY

number of channels in Y

YMI

lower edge of first Y channel

YMA

upper edge of last Y channel

VMX

maximum population to store in 1 cell.

Remarks:

• Similar to HBOOK1, apart from automatic binning.
• By default, a 2-dimensional histogram will be printed as a scatterplot.
• If the option TABL is selected via CALL HIDOPT(ID,'TABL')TABL the 2-dimensional histogram will be printed as a table.
• When editing the table, the number of columns NCOL used to write the content of one cell depends on the value of VMX as follows NCOL = ALOG10(VMX) + 2. When VMX is zero, the contents is printed in 10 columns in floating point format (including sign). If necessary, all contents are multiplied by a power of 10, this number being reported at the bottom of the table.