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NAMEr.li.cwed - Calculates contrast weighted edge density index on a raster mapKEYWORDSraster, landscape structure analysis, patch indexSYNOPSISr.li.cwedr.li.cwed --help r.li.cwed input=name config=name path=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui] Flags:
Parameters:
DESCRIPTIONr.li.cwed (contrast weighted edge density) calculates the edge density between patch types specified:with:
The input file contains a row for each couple of patch type that we want to consider in the calculation. Each row must be saved using this syntax: patchType1,patchType2,dissimilarityBetweenPatchType1andPatchType2 NOTESDo not use absolute path names for the config and output file/map parameters. If the "moving window" method was selected in g.gui.rlisetup, then the output will be a raster map, otherwise an ASCII file will be generated in the folder C:\Users\userxy\AppData\Roaming\GRASS7\r.li\output\ (MS-Windows) or $HOME/.grass7/r.li/output/ (GNU/Linux).If the sample area contains only NULL values it is considered to
have 0 patch and CWED=0. If Area is 0 r.li.cwed returns -1. This is
only possible if the map is masked.
r.null setnull=-1 input=my_mapafter index calculation. EXAMPLESTo calculate the contrast weighted edge density index on map my_map, using my_conf configuration file (previously defined with g.gui.rlisetup) and saving results in my_out, run:r.li.cwed input=my_map conf=my_conf output=my_out \ path=/path/to/weights.csv Example for input "weights.csv" file: 12,16,0.65 44,123,0.32 56,12,0.54 23,66,0.99 SEE ALSOr.li - package overviewg.gui.rlisetup REFERENCESMcGarigal, K., and B. J. Marks. 1995. FRAGSTATS: spatial pattern analysis program for quantifying landscape structure. USDA For. Serv. Gen. Tech. Rep. PNW-351. (PDF)AUTHORSSerena Pallecchi student of Computer Science University of Pisa (Italy).Commission from Faunalia Pontedera (PI), Italy (www.faunalia.it) Markus Metz SOURCE CODEAvailable at: r.li.cwed source code (history)Main index | Raster index | Topics index | Keywords index | Graphical index | Full index © 2003-2021 GRASS Development Team, GRASS GIS 7.8.6 Reference Manual
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