# Extract.owin

From spatstat v1.57-1
by Adrian Baddeley

##### Extract Subset of Window

Extract a subset of a window.

##### Usage

```
# S3 method for 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"`

).

##### See Also

##### Examples

```
# NOT RUN {
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 1.57-1, License: GPL (>= 2)*

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