# Extract.owin

From spatstat v1.37-0
by Adrian Baddeley

##### Extract Subset of Window

Extract a subset of a window.

##### Usage

```
## S3 method for class 'owin':
[(x, i, \dots)
```

##### 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"`

).

##### See Also

##### Examples

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

*Documentation reproduced from package spatstat, version 1.37-0, License: GPL (>= 2)*

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