coordinates

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sets spatial coordinates to create spatial data, or retrieves spatial coordinates

sets spatial coordinates to create spatial data, or retrieves spatial coordinates

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")
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
# 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 0.9-14, License: GPL version 2 or later

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