On Wednesday 28 January 2009, Nikos Alexandris wrote: > On Wed, 2009-01-28 at 12:03 +0100, Jasiewicz Jarosław wrote: > > Nikos Alexandris pisze: > > > I've a couple or raster maps (MODIS bands) in R and what I am trying to > > > achieve is to get density plots superimposed in one graph (for the sake > > > of easy visual comparison). > > > Any pointers for this "comparison" task? > > > > Hi > > simply use density function with the same bandwith=, from=, to= for each > > raster and next use lines to add curves for vuisual comparing > > > > for example: > > plot(density(bronze$a_slope,bw=0.1,from=0, to=12), col=2) > > lines(density(neolitic$a_slope,bw=0.1,from=0, to=12), col=1) > > > > Jarek > > Thanks, of course it works :-). It is soooo easy :D > Cheers, Nikos > > _______________________________________________ > grass-stats mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-stats
library(lattice) densityplot(~ value | group) -- Dylan Beaudette Soil Resource Laboratory http://casoilresource.lawr.ucdavis.edu/ University of California at Davis 530.754.7341 _______________________________________________ grass-stats mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-stats
