DESCRIPTION
r.li.padrange
(patch area distribution range) calculates
as:
with:
- amax: max patch area size
- amin: min patch area size
EXAMPLES
To calculate range of patch area size, using
my_conf configuration file and saving results in
my_out file run:
r.li.padrange 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 not full of null values r.li.padrange returns a
value >=0 that is PADcv.
If input raster is full of null values r.li.padrange returns -1.
If you want to have null values instead run
r.null setnull=-1 map=my_map
after index calculation.
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.
SEE ALSO
r.li
AUTHORS
Serena Pallecchi student of Computer Science University of Pisa (Italy).
Commission from Faunalia Pontedera (PI), Italy (www.faunalia.it)
BUGS
Please send bugs reports to
pallecch@cli.di.unipi.it
Last changed: $Date: 2007-02-08 17:27:23 +0100 (gio, 08 feb 2007) $