NAME¶

r.li.mpa - Calculates mean pixel attribute index on a raster map

KEYWORDS¶

raster, landscape structure analysis, patch index

SYNOPSIS¶

r.li.mpa r.li.mpa help r.li.mpa map=name conf=string output=name [-- overwrite] [--verbose] [--quiet]

Flags:¶

--overwrite

 

Allow output files to overwrite existing files

--verbose

 

Verbose module output

--quiet

 

Quiet module output

Parameters:¶

map=name

 

Name of input raster map

conf=string

 

Configuration file

output=name

 

Name for output raster map

DESCRIPTION¶

r.li.mpa (mean pixel attribute) calculates the average value of the attribute of all the non-null cells in the sampling area as: with:

EXAMPLES¶

To calculate mean pixel attribute index on map my_map, using my_conf configuration file and saving results in my_out file run: r.li.mpa map=my_map conf=my_conf output=my_out

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. If input raster is full of null values r.li.mpa consider to have 0 patch. If area is 0 r.li.mpa returns -1; it is possible only if the raster is masked If you want to have null values instead run r.null setnull=-1 map=my_map after index calculation.

SEE ALSO¶

r.li r.le

AUTHORS¶

Serena Pallecchi student of Computer Science University of Pisa (Italy). Commission from Faunalia Pontedera (PI), Italy (www.faunalia.it) Last changed: $Date: 2011-08-16 11:13:05 +0200 (Tue, 16 Aug 2011) $ Full index © 2003-2011 GRASS Development Team