<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>GRASS GIS: r.surf.random</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link rel="stylesheet" href="grassdocs.css" type="text/css"> </head> <body bgcolor="white"> <img src="grass_logo.png" alt="GRASS logo"><hr align=center size=6 noshade> <h2>NAME</h2> <em><b>r.surf.random</b></em> - Produces a raster map layer of uniform random deviates whose range can be expressed by the user. <h2>KEYWORDS</h2> raster <h2>SYNOPSIS</h2> <b>r.surf.random</b><br> <b>r.surf.random help</b><br> <b>r.surf.random</b> [-<b>i</b>] <b>output</b>=<em>name</em> [<b>min</b>=<em>integer</em>] [<b>max</b>=<em>integer</em>] [--<b>overwrite</b>] [--<b>verbose</b>] [--<b>quiet</b>] <h3>Flags:</h3> <DL> <DT><b>-i</b></DT> <DD>Create an integer map</DD> <DT><b>--overwrite</b></DT> <DD>Allow output files to overwrite existing files</DD> <DT><b>--verbose</b></DT> <DD>Verbose module output</DD> <DT><b>--quiet</b></DT> <DD>Quiet module output</DD> </DL> <h3>Parameters:</h3> <DL> <DT><b>output</b>=<em>name</em></DT> <DD>Name for output raster map</DD> <DT><b>min</b>=<em>integer</em></DT> <DD>Minimum random value</DD> <DD>Default: <em>0</em></DD> <DT><b>max</b>=<em>integer</em></DT> <DD>Maximum random value</DD> <DD>Default: <em>100</em></DD> </DL> <H2>DESCRIPTION</H2> <B>r.surf.random</B> produces a raster map layer of uniform random deviates whose range can be expressed by the user. It is essentialy the same as <em>r.surf.gauss</em>, but uses a linear random number generator instead. It uses the random number generator drand48() or rand()<!-- cite? -->, depending on the user's platform. <H2>SEE ALSO</H2> <EM> <A HREF="r.surf.contour.html">r.surf.contour</A>, <A HREF="r.surf.fractal.html">r.surf.fractal</A>, <A HREF="r.surf.gauss.html">r.surf.gauss</A>, <A HREF="r.surf.idw.html">r.surf.idw</A>, <A HREF="r.surf.idw2.html">r.surf.idw2</A>, <A HREF="v.surf.rst.html">v.surf.rst</A> </EM> <H2>AUTHOR</H2> Jo Wood<BR> Midlands Regional Research Laboratory (ASSIST)<BR> University of Leicester<BR> <i>October 1991</i> <BR> <!-- almost certainly no longer valid <ADDRESS>jwo at le.ac.uk</ADDRESS> <BR><A HREF="http://www.geog.le.ac.uk/assist/index.html">ASSIST's home</A> --> <p> <i>Last changed: $Date: 2007-08-23 09:00:17 +0200 (Thu, 23 Aug 2007) $</i> <HR> <P><a href="index.html">Main index</a> - <a href="raster.html">raster index</a> - <a href="full_index.html">Full index</a></P> <P>© 2003-2008 <a href="http://grass.osgeo.org">GRASS Development Team</a></p> </body> </html>
