Extract Window of Spatial Object

Description

Given a spatial object (such as a point pattern or pixel image) in two dimensions, these functions extract the window in which the object is defined.

Usage

 ## S3 method for class 'ppm'
Window(X, ..., from=c("points", "covariates"))

 ## S3 method for class 'kppm'
Window(X, ..., from=c("points", "covariates"))

 ## S3 method for class 'dppm'
Window(X, ..., from=c("points", "covariates"))

 ## S3 method for class 'lpp'
Window(X, ...)

 ## S3 method for class 'lppm'
Window(X, ...)

 ## S3 method for class 'msr'
Window(X, ...)

 ## S3 method for class 'quad'
Window(X, ...)

 ## S3 method for class 'quadratcount'
Window(X, ...)

 ## S3 method for class 'quadrattest'
Window(X, ...)

 ## S3 method for class 'tess'
Window(X, ...)

 ## S3 method for class 'layered'
Window(X, ...)

 ## S3 method for class 'distfun'
Window(X, ...)

 ## S3 method for class 'nnfun'
Window(X, ...)

 ## S3 method for class 'funxy'
Window(X, ...)

 ## S3 method for class 'rmhmodel'
Window(X, ...)

 ## S3 method for class 'leverage.ppm'
Window(X, ...)

 ## S3 method for class 'influence.ppm'
Window(X, ...)

Arguments

Details

These are methods for the generic function Window which extract the spatial window in which the object X is defined.

The argument from applies when X is a fitted point process model (object of class "ppm", "kppm" or "dppm"). If from="data" (the default), Window extracts the window of the original point pattern data to which the model was fitted. If from="covariates" then Window returns the window in which the spatial covariates of the model were provided.

Value

An object of class "owin" (see owin.object) specifying an observation window.

Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au

Rolf Turner r.turner@auckland.ac.nz

and Ege Rubak rubak@math.aau.dk

See Also

Window, Window.ppp, Window.psp.

owin.object

Examples

   X <- quadratcount(cells, 4)
   Window(X)