[R-sig-Geo] How to subset a spatial grid?
yong.li at unimelb.edu.au
Tue May 20 09:46:29 CEST 2008
I want to subset a large spatial grid (2000*2000) into many smaller
grids for further processing in my simulation models. Could anyone do it
before and any tips will be highly appreciated?
Map <- readGDAL("yong.img") # one image from erdras imagine
Map$va <- Map$band1
Map$band1 <- NULL
Map1 <- a subset of Map$va based on selected cols and rows.
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