Two options are available for plotting scatter plots 'CHA ' and 'NCHA'.
The first will print a character in the middle of each bin, corresponding
to the contents of the bin. The result will be the same as with HBOOK -
i.e. the contents are printed up to a value of 36 (or, up to the maximum
allowed by the number of bits per channel that were set during booking),
after which an asterisk is printed to denote overflow.
The second option 'NCHA' (set by default in HPLINT) will plot points
randomly distributed within the bin. If the maximum content of any bin is
50 or less, the number of points plotted corresponds to the contents. If,
however, the maximum content is greater than 50, then the number of points
plotted will be normalised such that 50 points correspond to the maximum,
(but a bin containing a value of 1.0 or greater will have at least one
point plotted).
Note that logarithmic scales are ignored for scatterplots and tables.