Extract.solist: Extract or Replace Subset of a List of Spatial Objects

In spatstat.geom: Geometrical Functionality of the 'spatstat' Family

Extract or Replace Subset of a List of Spatial Objects

Description

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

Usage

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

  ## S3 replacement method for class 'solist'
x[i] <- value

  ## S3 replacement method for class '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. See Details.
...	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 and value must be a list of spatial objects; the designated elements of x will be replaced by the corresponding elements of the list value.

For the replacement "[[<-" method, i must be a single integer, and value must be a spatial object.

If all entries of x belong to the same class, then in the replacement methods, a value of NA is automatically coerced to an NA object of the same class.

Value

Another object of the same class as x.

Author(s)

\spatstatAuthors

See Also

solist, plot.solist, summary.solist

Examples

   x <- solist(japanesepines, cells, redwood)
   x[2:3]
   x[square(0.5)]
   x[1] <- list(finpines)
   x[[1]] <- cells
   x[[3]] <- NA
 

spatstat.geom documentation built on Aug. 8, 2025, 6:28 p.m.