R: Extract or Replace Sub-Patterns

subset.splitppp {spatstat}

R Documentation

Extract or Replace Sub-Patterns

Description

Extract or replace some of the sub-patterns in a split point pattern.

Usage

  ## S3 method for class 'splitppp':
  x[i]
  ## S3 method for class 'splitppp':
  x[i] <- value

Arguments

`x`	An object of class `"splitppp"`, representing a point pattern separated into a list of sub-patterns.
`i`	Subset index. Any valid subset index in the usual R sense.
`value`	Replacement value for the subset. A list of point patterns.

Details

These are subset methods for the class "splitppp".

The argument x should be an object of class "splitppp", representing a point pattern that has been separated into a list of sub-patterns. It is created by split.ppp.

The methods extract or replace a designated subset of the list x, and return an object of class "splitppp".

Value

Another object of class "splitppp".

Author(s)

Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner rolf@math.unb.ca http://www.math.unb.ca/~rolf

Examples

  data(amacrine)  # multitype point pattern
  y <- split(amacrine)
  y[1]
  y["off"]
  y[1] <- list(runifpoint(42, amacrine$window))

[Package spatstat version 1.11-3 Index]