You might try cellValues(). Argument "cells" should be the indices of the non-masked cells.
Something like this: cellInd <- which(getValues(r1) != mask.value) valueVector <- cellValues(r2, cells = cellInd) Jacob. --- On Fri, 9/7/10, Jonathan Greenberg <greenb...@ucdavis.edu> wrote: From: Jonathan Greenberg <greenb...@ucdavis.edu> Subject: [R-sig-Geo] getValues() question To: "Robert J. Hijmans" <r.hijm...@gmail.com>, "r-sig-geo" <r-sig-geo@stat.math.ethz.ch> Date: Friday, 9 July, 2010, 20:23 r-sig-geo'ers and Robert: If I want to pull out the values of a raster into a dataframe, ignoring "masked" values, what is the quickest way to do this? I can use getValues() and "post-process" the output, but is there a way to skip every loading these masked values into a memory in the first place? --j _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo [[alternative HTML version deleted]]
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