This histogram is not modified by the procedure.
[No default, this is a mandatory argument.]
If ngroup does not divide the number of bins in the input histogram, the incomplete set of bins at the upper end of the histogram range will be added to the overflow.
This argument should be an integer Number larger than 0 and smaller than, or equal to, the number of bins in the input histogram.
[No default, this is a mandatory argument.]
The value of this parameter on entry is not used and is lost after the procedure call.
This argument must be modifiable, i.e. this must be a simple variable name and not an expression.
It is permissible that ref_out and ref_in coincide.
Formatted on 21/01/18 at 16:55.