spatstat (version 1.20-2)

coords: Extract Coordinates of a Spatial or Spatiotemporal Point Pattern

Description

Given any kind of spatial or space-time point pattern, this function extracts the (space and/or time) coordinates of the points and returns them as a data frame.

Usage

coords(x, ...)
  ## S3 method for class 'ppp':
coords(x, ...)
  ## S3 method for class 'ppx':
coords(x, ..., spatial = TRUE, temporal = TRUE)

Arguments

x

A point pattern: either a two-dimensional point pattern (object of class "ppp"), a three-dimensional point pattern (object of class "pp3"), or a general multidimensional space-time point pattern (object of class

...

Further arguments passed to methods.

spatial,temporal

Logical values indicating whether to extract spatial and temporal coordinates, respectively. The default is to return both spatial and temporal coordinates.

Value

• A data.frame with one row for each point, containing the coordinates.

Details

The function coords is generic, with methods for the classes "ppp") and "ppx". An object of class "pp3" also inherits from "ppx" and is handled by the method for "ppx".

See Also

ppx, pp3, ppp, as.hyperframe.ppx, as.data.frame.ppx.

Examples

df <- data.frame(x=runif(4),y=runif(4),t=runif(4))
   X <- ppx(data=df, temporal="t")
   coords(X)
   coords(X, temporal=FALSE)