.TH r.li.richness 1grass "" "GRASS 6.4.2" "Grass User's Manual"
.SH NAME
\fI\fBr.li.richness\fR\fR  - Calculates dominance's diversity index on a raster map
.SH KEYWORDS
raster, landscape structure analysis, dominance index
.SH SYNOPSIS
\fBr.li.richness\fR
.br
\fBr.li.richness help\fR
.br
\fBr.li.richness map\fR=\fIname\fR \fBconf\fR=\fIstring\fR \fBoutput\fR=\fIname\fR  [--\fBoverwrite\fR]  [--\fBverbose\fR]  [--\fBquiet\fR] 
.SS Flags:
.IP "\fB--overwrite\fR" 4m
.br
Allow output files to overwrite existing files
.IP "\fB--verbose\fR" 4m
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Verbose module output
.IP "\fB--quiet\fR" 4m
.br
Quiet module output
.PP
.SS Parameters:
.IP "\fBmap\fR=\fIname\fR" 4m
.br
Name of input raster map
.IP "\fBconf\fR=\fIstring\fR" 4m
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Configuration file
.IP "\fBoutput\fR=\fIname\fR" 4m
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Name for output raster map
.PP
.SH DESCRIPTION
\fIr.li.richness\fR calculates the "richness's diversity index" as:
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with: 
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.RS
.IP
\fBm\fR: number of different patch type
.RE
.SH EXAMPLES
To calculate richness's diversity index on map my_map, using
my_conf configuration file and saving results in my_out file run:
.br
\fC
.DS
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r.li.richness map=my_map conf=my_conf output=my_out
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.DE
\fR
.SH NOTES
Do not use absolute path names for output files. They are raster if
moving window disposition was selected, otherwise they are in
~/.r.li/output folder. 
.br
If input raster is full of null values r.li.richness returns -1.
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If you want to have null values instead run 
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after index calculation.
.SH REFERENCES
McGarigal, K., and B. J. Marks. 1995. FRAGSTATS: spatial pattern
analysis program for quantifying landscape structure. USDA For. Serv.
Gen. Tech. Rep. PNW-351.
.SH SEE ALSO
\fI
r.li
\fR
.SH AUTHORS
Serena Pallecchi student of Computer Science University of Pisa (Italy).
.br
Commission from Faunalia Pontedera (PI), Italy (www.faunalia.it)
.PP
\fILast changed: $Date: 2011-08-16 11:13:05 +0200 (Tue, 16 Aug 2011) $\fR
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Full index
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© 2003-2011 GRASS Development Team