R: Extract Subset of Window

Extract.owin {spatstat} | R Documentation

## Extract Subset of Window

### Description

Extract a subset of a window.

### Usage

      ## S3 method for class 'owin'
    x[i, ...]

### Arguments

`x` | A spatial window (object of class `"owin"`).
`i` | Object defining the subregion. Either a spatial window, or a pixel image with logical values.
`...` | Ignored.

### Details

This function computes the intersection between the window `x` and the domain specified by `i`, using `intersect.owin`.

This function is a method for the subset operator `"["` for spatial windows (objects of class `"owin"`). It is provided mainly for completeness.

The index `i` may be either a window, or a pixel image with logical values (the `TRUE` values of the image specify the spatial domain).

### Value

Another spatial window (object of class `"owin"`).

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au and Rolf Turner r.turner@auckland.ac.nz

### See Also

`intersect.owin`

### Examples

     W <- owin(c(2.5, 3.2), c(1.4, 2.9))
     plot(letterR)
     plot(letterR[W], add=TRUE, col="red")

[Package spatstat version 1.63-3 Index]