.TH r.surf.random 1grass "" "GRASS 6.4.4" "Grass User's Manual" .SH NAME \fI\fBr.surf.random\fR\fR - Produces a raster map of uniform random deviates whose range can be expressed by the user. .SH KEYWORDS raster, random .SH SYNOPSIS \fBr.surf.random\fR .br \fBr.surf.random help\fR .br \fBr.surf.random\fR [\-\fBi\fR] \fBoutput\fR=\fIname\fR [\fBmin\fR=\fIinteger\fR] [\fBmax\fR=\fIinteger\fR] [\-\-\fBoverwrite\fR] [\-\-\fBverbose\fR] [\-\-\fBquiet\fR] .SS Flags: .IP "\fB\-i\fR" 4m .br Create an integer raster map .IP "\fB\-\-overwrite\fR" 4m .br Allow output files to overwrite existing files .IP "\fB\-\-verbose\fR" 4m .br Verbose module output .IP "\fB\-\-quiet\fR" 4m .br Quiet module output .PP .SS Parameters: .IP "\fBoutput\fR=\fIname\fR" 4m .br Name for output raster map .IP "\fBmin\fR=\fIinteger\fR" 4m .br Minimum random value .br Default: \fI0\fR .IP "\fBmax\fR=\fIinteger\fR" 4m .br Maximum random value .br Default: \fI100\fR .PP .SH DESCRIPTION \fBr.surf.random\fR produces a raster map layer of uniform random deviates whose range can be expressed by the user. It is essentialy the same as \fIr.surf.gauss\fR, but uses a linear random number generator instead. It uses the random number generator drand48() or rand(), depending on the user's platform. .PP \fIHistogram of map generated with r.surf.random\fR .SH SEE ALSO \fI r.surf.contour, r.surf.fractal, r.surf.gauss, r.surf.idw, r.surf.idw2, v.surf.rst \fR .SH AUTHOR Jo Wood .br Midlands Regional Research Laboratory (ASSIST) .br University of Leicester .br \fIOctober 1991\fR .br .PP \fILast changed: $Date: 2008-06-01 12:01:53 +0200 (Sun, 01 Jun 2008) $\fR .PP Full index .PP © 2003-2014 GRASS Development Team