Daniel Victoria wrote: > R has a command to calculate the Mahalanobis distance [1], so I > believe it's just a matter of getting the grass data into R in the > correct way and using the already R built in tools in R. > Unfortunately, this is as far as I can help, not being an expert in R > myself....
Sorry that I did not take the time to search better within R. So, it seems to be very easy then using the R function "mahalanobis()". As Daniel notes, it's just a matter of correctly loading the data in R. @Pedro: If you have difficulties to get started with R, check the wiki [2]. There are examples. Myself I calculated separability measures this way (grass raster samples -> R -> separability measures -> exported as csv). Cheers, Nikos > [1] - > http://stat.ethz.ch/R-manual/R-devel/library/stats/html/mahalanobis.html [2] <http://grass.osgeo.org/wiki/R_statistics> _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
