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2009 Aug 25
0
Fwd: Overlay on raster loses points when merging with data frame
Does anyone have an idea about this, it's driving me insane!
Hello everyone. I have overlayed 1611 points on top of a tif file.
tifclassoverlay<-overlay(CRS11, classifiedmodrobin)
overlaydf<-as.data.frame(tifclassoverlay)
tifol<-remove.na.rows(overlaydf)
tifol is 854 rows long. tifol has predicted data, while the
classifiedmodrobin matrix has observed data. When I try to merge the two, I
get a length of 827:
ngafulldf<-as.data.frame(classifiedmodrobin)
NGAfiledata&l...