coordinates

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set spatial coordinates to create a Spatial object, or retrieve spatial coordinates from a Spatial object

set spatial coordinates to create a Spatial object, or retrieve spatial coordinates from a Spatial object

Keywords
manip
Usage
coordinates(obj, ...)
	coordinates(object) <- value
Arguments
obj

object deriving from class "Spatial"

object

object of class "data.frame"

value

spatial coordinates; either a matrix, list, or data frame with numeric data, or column names, column number or a reference: a formula (in the form of e.g. ~x+y), column numbers (e.g. c(1,2)) or column names (e.g. c("x","y")) specifying which columns in object are the spatial coordinates. If the coordinates are part of object, giving the reference does not duplicate them, giving their value does duplicate them in the resulting structure.

...

additional arguments that may be used by particular methods

Value

usually an object of class SpatialPointsDataFrame; if the coordinates set cover the full set of variables in object, an object of class SpatialPoints is returned

Aliases
  • coordinates
  • coordinates<-
Examples
# NOT RUN {
# data.frame
data(meuse.grid)
coordinates(meuse.grid) <- ~x+y
gridded(meuse.grid) <- TRUE
class(meuse.grid)
bbox(meuse.grid)

data(meuse)
meuse.xy = meuse[c("x", "y")]
coordinates(meuse.xy) <- ~x+y
class(meuse.xy)

# }
Documentation reproduced from package sp, version 1.3-1, License: GPL (>= 2)

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