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[GREG1\]HISTOGRAM [Array_X Array_Y] [/BASE [Ybase]] [/BLANKING Bval
Eval] [/FILL [Colour]] [/HATCH [Ipen] [Angle] [Separ] [Phase]] [/Y]
Connect the coordinates read by COLUMN X and Y, or stored in the vari-
ables Array_X Array_Y as a histogram.
The /BASE option specifies a "true" histogram, connected to a base lev-
el. A scalar value means a flat base level, while a 1D variable (same
size as X and Y arrays) means a custom base for each bin. Default is 0
The /BLANKING option will supersede the current blanking values (as de-
fined by SET BLANKING command) so that data points with
abs(Y(i)-Bval) < Eval are not plotted. Eval negative means no blanking
value. Blanking always applies on bin counts, i.e. Array_Y values, or
Array_X values if /Y is present.
By default, binning is done along X axis (assuming increasing Array_X
values), and Array_Y provides the bin counts. This can be reverted
thanks to option /Y. In this case, binning is one along Y axis (assuming
increasing Array_Y values), and Array_X provides the bin counts. This
creates a 90 degrees rotated histogram.