NAME

       r.surf.random   -  Produces  a  raster surface map of uniform random deviates with defined
       range.

KEYWORDS

       raster, surface, random

SYNOPSIS

       r.surf.random
       r.surf.random --help
       r.surf.random [-i] output=name  [min=integer]    [max=integer]    [--overwrite]   [--help]
       [--verbose]  [--quiet]  [--ui]

   Flags:
       -i
           Create an integer raster map

       --overwrite
           Allow output files to overwrite existing files

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       output=name [required]
           Name for output raster map

       min=integer
           Minimum random value
           Default: 0

       max=integer
           Maximum random value
           Default: 100

DESCRIPTION

       r.surf.random  produces  a  raster map layer of uniform random deviates whose range can be
       expressed by the user. It is essentialy 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.

       Histogram of map generated with r.surf.random

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

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

       Last changed: $Date: 2016-06-02 22:48:17 +0200 (Thu, 02 Jun 2016) $

SOURCE CODE

       Available at: r.surf.random source code (history)

       Main index | Raster index | Topics index | Keywords index | Graphical index | Full index

       © 2003-2018 GRASS Development Team, GRASS GIS 7.4.0 Reference Manual