Image processing histograms

[Darrell McCauley]

Lesley-Ann Dupigny (dupigny at felix.geog.mcgill.ca) writes on 16 Nov 93:
>temperatures in GRASS4.0. I would like to be able to generate a hard copy
>of the histogram of the count values (similar to that from d.histogram),

The following example produces postscript output. This could be easily
modified for TeX, FrameMaker, groff, or whatever.

% r.stats -qc i=temperatures o=temp.histo
% g.gnuplot
gnuplot> set term postscript
gnuplot> set out 'temp.ps'
gnuplot> plot 'temp.histo' with impulses
gnuplot> quit

(then print temp.ps)

g.gnuplot is not part of 4.0 but will be in 4.2. It is currently
available via anonymous ftp from moon.cecer.army.mil in
grass/incoming/g.gnuplot3.5.tar.Z. Included in this is a manual.

I'm assuming that the -qc flags exist in the 4.0 r.stats...
--Darrell