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)

Arguments

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

Value

logical value

Examples

#using a new default raster (1 degree global)
r <- raster()
validCell(r, c(-1, 0, 1))
#> [1] FALSE FALSE  TRUE
validRow(r, c(-1, 1, 100, 10000))
#> [1] FALSE  TRUE  TRUE FALSE