On 16/05/2012 20:55, Salvatore Mellino wrote:
I'm trying but I receive an error.1. In R I started the libraries spgarass6 and classInt 2. I imported the DTM in R using DTM<- readRAST6("DTM@mapset", ignore.stderr=TRUE) 3. I used the command DTM_class<- classIntervals(DTM, n=5, style="fisher") and I received the error Error in classIntervals(DTM, n = 5, style = "fisher") : var is not numeric
I do not recall exactly, but it may be that classIntervals does not have a method for spatial data frames (i.e. the output of readRAST6). One thing I would try to get the breaks anyway, is a regular R data.frame, for example:
DTM.df <- as.data.frame(DTM) DTM_class <- classIntervals(DTM.df, n=5, style="fisher") Hope this helps, Luigi _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
