Determining average value

GRASS GRASS user
1

... a simple program ... to determine average value for a raster data set.

Steve,

r.average can also do this:

  r.average base=MASK_AREA cover=EVAPORATION_POTENTIAL output=AVE_POTENTIAL

The base map holds the information about the area to be used when
calculating the average. It is MASK in this example, because that is
the example you described. It could also have more than two values
(i.e. 0 and 1) and then you could get an average for each of the parts
in the base map.

The output is a reclass of the base map, with the average held in
the category labels. To read the label, use r.cats

  r.cats map=AVE_POTENTIAL cats=1

Marilyn Ruiz
ruiz@thales.geog.ufl.edu

2

Hi,
Who knows who you can position a postscript file included in your with ps.map
script with psfile.
My included logo postscript file is somewhere put at the top of my raster
file defined in ps.map (the command where does not work in combination
with psfile).

Thanks,
Okke

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Okke Batelaan email: batelaan@hydr1.vub.ac.be
Laboratory of Hydrology NEW !! tel: x-32-2-6293021
Free University Brussels NEW !! fax: x-32-2-6293022
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1050 BRUSSELS, BELGIUM
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