validCell: Validity of a cell, column or row number

In raster: Geographic Data Analysis and Modeling

Description

Simple helper functions to determine if a row, column or cell number is valid for a certain Raster* object

Usage

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))
validRow(r, c(-1, 1, 100, 10000))

Example output

Loading required package: sp
[1] FALSE FALSE  TRUE
[1] FALSE  TRUE  TRUE FALSE

raster documentation built on Jan. 5, 2021, 3:01 a.m.