r.li.pielou(1)

NAME
r.li.pielou

DESCRIPTION
r.li.pielou calculates the "pielou's diversity index" as:
with:

        J: Pielou eveness index

        H': Shannon index

        S: number of classes

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 the input raster contains NULL value cells, r.li.pielou returns -1 for these cells.
If you want to keep NULL values instead, run subsequently on the resulting map:
r.null setnull=-1 map=my_map

EXAMPLES
To calculate Pielou's diversity index on the map "my_map", using the previously created "my_conf" configuration file (r.li.setup) and saving results in "my_out" raster map, run:
r.li.pielou map=my_map conf=my_conf output=my_out

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. (PDF)

SEE ALSO
r.li, r.li.setup

AUTHORS
Luca Delucchi and Duccio Rocchini, Fondazione E. Mach (Italy), based on the r.li.shannon code developed by Serena Pallecchi student of Computer Science University of Pisa (Italy).

Last changed: $Date: 2010-11-24 17:49:21 +0100 (Wed, 24 Nov 2010) $

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