Displaying 1 result from an estimated 1 matches for "ngafiledata".
2009 Aug 25
0
Fwd: Overlay on raster loses points when merging with data frame
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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<-merge(tifol, ngafulldf,all=FALSE, by=c("LON", "LAT"))
NGAfiledata<-unique(NGAfiledata)
NGAfiledata<-remove.na.rows(NGAfiledata)
The length should obviously still be 854. What happened to the missing
rows? How can I get them back? Thank you very much!! Here is a sa...