.TH r.le.patch 1grass "" "GRASS 6.4.2" "Grass User's Manual"
.SH NAME
\fI\fBr.le.patch\fR\fR  - Calculates attribute, patch size, core (interior) size, shape, fractal dimension, and perimeter measures for sets of patches in a landscape.
.SH KEYWORDS
raster, landscape structure analysis, patch index
.SH SYNOPSIS
\fBr.le.patch\fR
.br
\fBr.le.patch help\fR
.br
\fBr.le.patch\fR [-\fBcnptu\fR] \fBmap\fR=\fIstring\fR  [\fBsam\fR=\fIstring\fR]   [\fBreg\fR=\fIstring\fR]   [\fBatt\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBsiz\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBco1\fR=\fIinteger\fR]   [\fBco2\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBsh1\fR=\fIstring\fR]   [\fBsh2\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBbnd\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBper\fR=\fIstring\fR[,\fIstring\fR,...]]   [\fBout\fR=\fIstring\fR]   [--\fBverbose\fR]  [--\fBquiet\fR] 
.SS Flags:
.IP "\fB-c\fR" 4m
.br
Output map 'interior' with patch cores (specify co1 & co2)
.IP "\fB-n\fR" 4m
.br
Output map 'num' with patch numbers
.IP "\fB-p\fR" 4m
.br
Include sampling area boundary as perimeter
.IP "\fB-t\fR" 4m
.br
Use 4 neighbor instead of 8 neighbor tracing
.IP "\fB-u\fR" 4m
.br
Output maps 'units_x' with sampling units for each scale x 
.IP "\fB--verbose\fR" 4m
.br
Verbose module output
.IP "\fB--quiet\fR" 4m
.br
Quiet module output
.PP
.SS Parameters:
.IP "\fBmap\fR=\fIstring\fR" 4m
.br
Raster map to be analyzed
.IP "\fBsam\fR=\fIstring\fR" 4m
.br
Sampling method (choose only 1 method): 
.br
	w = whole map     u = units     m = moving window    r = regions
.br
Default: \fIw\fR
.IP "\fBreg\fR=\fIstring\fR" 4m
.br
Name of regions map, only when sam = r; omit otherwise
.IP "\fBatt\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
a1 = mn. pixel att. 		a2 = s.d. pixel att.
.br
	a3 = mn. patch att. 		a4 = s.d. patch att.	a5 = cover by gp 		a6 = density by gp	a7 = total density 		a8 = eff. mesh number
.br
Options: \fIa1,a2,a3,a4,a5,a6,a7,a8\fR
.IP "\fBsiz\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
s1 = mn. patch size		s2 = s.d. patch size
.br
	s3 = mn. patch size by gp	s4 = s.d. patch size by gp 	s5 = no. by size class		s6 = no. by size class by gp	s7 = eff. mesh size 		s8 = deg. landsc. division
.br
Options: \fIs1,s2,s3,s4,s5,s6,s7,s8\fR
.IP "\fBco1\fR=\fIinteger\fR" 4m
.br
Depth-of-edge-influence in pixels (integer) for use with co2
.IP "\fBco2\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
Core size measures (required if co1 was specified):
.br
	c1 = mn. core size		c2 = s.d. core size	c3 = mn. edge size		c4 = s.d. edge size	c5 = mn. core size by gp	c6 = s.d. core size by gp	c7 = mn. edge size by gp	c8 = s.d. edge size by gp	c9 = no. by size class		c10 = no. by size class by gp
.br
Options: \fIc1,c2,c3,c4,c5,c6,c7,c8,c9,c10\fR
.IP "\fBsh1\fR=\fIstring\fR" 4m
.br
Shape index (choose only 1 index):
.br
	m1 = per./area    m2 = corr. per./area    m3 = rel. circum. circle
.IP "\fBsh2\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
Shape measures (required if sh1 was specified):
.br
	h1 = mn. patch shape		h2 = s.d. patch shape	h3 = mn. patch shape by gp	h4 = s.d. patch shape by gp	h5 = no. by shape class 	h6 = no. by shape class by gp
.br
Options: \fIh1,h2,h3,h4,h5,h6\fR
.IP "\fBbnd\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
n1 = mn. twist number           n2 = s.d. twist number
.br
	n3 = mn. omega index            n4 = s.d. omega index
.br
Options: \fIn1,n2,n3,n4\fR
.IP "\fBper\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
p1 = sum of perims.		p4 = sum of perims. by gp
.br
	p2 = mn. per.			p5 = mn. per. by gp	p3 = s.d. per.			p6 = s.d. per. by gp
.br
Options: \fIp1,p2,p3,p4,p5,p6\fR
.IP "\fBout\fR=\fIstring\fR" 4m
.br
Name of output file for individual patch measures, when sam=w,u,r;
.br
	if out=head, then column headings will be printed
.PP
.SH DESCRIPTION
The \fIr.le.patch\fR module calculates attribute, patch size, core
(interior) size, shape, fractal dimension, and perimeter measures for sets
of patches in a landscape.
.SH NOTES
Full instructions can be found in the \fBr.le manual\fR (see "REFERENCES"
section below) and the \fIr.le.setup\fR
help page.
.SH REFERENCES
Baker, W.L. and Y. Cai. 1992. The r.le programs for multiscale analysis of
landscape structure using the GRASS geographical information system.
Landscape Ecology 7(4):291-302.
.PP
The \fIr.le\fR
manual: Quantitative analysis of landscape structures (GRASS 5; 2001)
.SH SEE ALSO
\fI
r.le.pixel,
r.le.setup, 
r.le.trace\fR
.SH AUTHOR
William L. Baker Department of Geography and Recreation University of
Wyoming Laramie, Wyoming 82071 U.S.A.
.PP
\fILast changed: $Date: 2009-02-04 03:03:33 +0100 (Wed, 04 Feb 2009) $\fR
.PP
Full index
.PP
© 2003-2011 GRASS Development Team