1r.surf.random(1)            GRASS GIS User's Manual           r.surf.random(1)
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NAME

6       r.surf.random   - Produces a raster surface map of uniform random devi‐
7       ates with defined range.
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KEYWORDS

10       raster, surface, random
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SYNOPSIS

13       r.surf.random
14       r.surf.random --help
15       r.surf.random   [-i]   output=name     [min=integer]      [max=integer]
16       [--overwrite]  [--help]  [--verbose]  [--quiet]  [--ui]
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18   Flags:
19       -i
20           Create an integer raster map
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22       --overwrite
23           Allow output files to overwrite existing files
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25       --help
26           Print usage summary
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28       --verbose
29           Verbose module output
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31       --quiet
32           Quiet module output
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34       --ui
35           Force launching GUI dialog
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37   Parameters:
38       output=name [required]
39           Name for output raster map
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41       min=integer
42           Minimum random value
43           Default: 0
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45       max=integer
46           Maximum random value
47           Default: 100
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DESCRIPTION

50       r.surf.random  produces  a  raster map layer of uniform random deviates
51       whose range can be expressed by the user. It is essentially the same as
52       r.surf.gauss,  but  uses  a linear random number generator instead.  It
53       uses the random number generator drand48() or rand(), depending on  the
54       user’s platform.
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56       Histogram of map generated with r.surf.random
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EXAMPLE

59       g.region -p n=228500 s=215000 w=630000 e=645000 res=10
60       r.surf.random out=random min=0 max=100
61       # check result
62       r.univar random
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SEE ALSO

65          r.random.surface,   r.surf.contour,   r.surf.fractal,  r.surf.gauss,
66       r.surf.idw, v.surf.rst
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AUTHOR

69       Jo Wood
70       Midlands Regional Research Laboratory (ASSIST)
71       University of Leicester
72       October 1991
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SOURCE CODE

75       Available at: r.surf.random source code (history)
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77       Main index | Raster index | Topics index | Keywords index  |  Graphical
78       index | Full index
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80       © 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
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84GRASS 7.8.5                                                   r.surf.random(1)
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