# Extract.solist

##### Extract or Replace Subset of a List of Spatial Objects

Extract or replace some entries in a list of spatial objects, or extract a designated sub-region in each object.

##### Usage

```
# S3 method for solist
[(x, i, …)
``` # S3 method for solist
[(x, i) <- value

##### Arguments

- x
An object of class

`"solist"`

representing a list of two-dimensional spatial objects.- i
Subset index. Any valid subset index for vectors in the usual R sense, or a window (object of class

`"owin"`

).- value
Replacement value for the subset.

- …
Ignored.

##### Details

These are methods for extracting and replacing subsets
for the class `"solist"`

.

The argument `x`

should be an object of class `"solist"`

representing a list of two-dimensional spatial objects.
See `solist`

.

For the subset method, the subset index `i`

can be either
a vector index (specifying some elements of the list)
or a spatial window (specifying a spatial sub-region).

For the replacement method,
`i`

must be a vector index: the designated elements will be
replaced.

##### Value

Another object of the same class as `x`

.

##### See Also

##### Examples

```
# NOT RUN {
x <- solist(japanesepines, cells, redwood)
x[2:3]
x[square(0.5)]
x[1] <- list(finpines)
# }
```

*Documentation reproduced from package spatstat, version 1.55-1, License: GPL (>= 2)*