DESCRIPTION
r.surf.random produces a raster map layer of uniform random deviates
whose range can be expressed by the user. It is essentially the same as
r.surf.gauss, but uses a linear random number generator instead.
It uses the random number generator drand48() or rand(),
depending on the user's platform.
EXAMPLE
g.region -p n=228500 s=215000 w=630000 e=645000 res=10
r.surf.random out=random min=0 max=100
# check result
r.univar random
Figure: Random surface example (min: 10; max: 100)
With the histogram tool the cell values versus count can be shown.
Figure: Histogram of random surface example (min: 10; max: 100)
SEE ALSO
r.random.surface,
r.surf.contour,
r.surf.fractal,
r.surf.gauss,
r.surf.idw,
v.surf.rst
AUTHOR
Jo Wood
Midlands Regional Research Laboratory (ASSIST)
University of Leicester
October 1991