dimensions function

retrieve spatial dimensions from spatial data

retrieves spatial dimensions box from spatial data methods

dimensions(obj)

Arguments

• obj: object deriving from class "Spatial"

Methods

• obj = "Spatial": object deriving from class "Spatial"

Returns

two-column matrix; the first column has the minimum, the second the maximum values; rows represent the spatial dimensions

Examples

# just 9 points on a grid:
x <- c(1,1,1,2,2,2,3,3,3)
y <- c(1,2,3,1,2,3,1,2,3)
xy <- cbind(x,y)
S <- SpatialPoints(xy)
dimensions(S)

# data.frame
data(meuse.grid)
coordinates(meuse.grid) <- ~x+y
gridded(meuse.grid) <- TRUE
dimensions(meuse.grid)