Validity of a cell, column or row number
Simple helper functions to determine if a row, column or cell number is valid for a certain Raster* object
validCell(object, cell) validCol(object, colnr) validRow(object, rownr)
object |
Raster* object (or a SpatialPixels* or SpatialGrid* object) |
cell |
cell number(s) |
colnr |
column number; or vector of column numbers |
rownr |
row number; or vector of row numbers |
logical value
#using a new default raster (1 degree global) r <- raster() validCell(r, c(-1, 0, 1)) validRow(r, c(-1, 1, 100, 10000))
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