[R] NA's from GRASS-package
Martin Wegmann
mailinglist.wegmann at web.de
Mon Oct 13 17:30:17 CEST 2003
Hello,
I run R inside GRASS and tried to obtain values of a raster file inside GRASS
but this raster image contains only a few relevant pixel and approx. 1.5
Mill. NA's, I did
G <- gmeta()
sites1 <- rast.get(G, "sites1")
df.sites1 <- data.frame(east(G), north(G), sites1, na.action=na.omit)
Error in as.data.frame.default(x[[i]], optional = TRUE) :
can't coerce function into a data.frame
executing it without na.action works fine but with 1.5 Mill. redundant values.
any advice how I receive the relevant 100 values without the NA's?
thanks in advance cheers Martin
More information about the R-help
mailing list