domain {spatstat} | R Documentation |
Given a spatial object such as a point pattern, in any number of dimensions, this function extracts the spatial domain in which the object is defined.
domain(X, ...) ## S3 method for class 'ppp' domain(X, ...) ## S3 method for class 'psp' domain(X, ...) ## S3 method for class 'im' domain(X, ...) ## S3 method for class 'ppx' domain(X, ...) ## S3 method for class 'pp3' domain(X, ...) ## S3 method for class 'lpp' domain(X, ...) ## S3 method for class 'ppm' domain(X, ..., from=c("points", "covariates")) ## S3 method for class 'kppm' domain(X, ..., from=c("points", "covariates")) ## S3 method for class 'dppm' domain(X, ..., from=c("points", "covariates")) ## S3 method for class 'lpp' domain(X, ...) ## S3 method for class 'lppm' domain(X, ...) ## S3 method for class 'msr' domain(X, ...) ## S3 method for class 'quad' domain(X, ...) ## S3 method for class 'quadratcount' domain(X, ...) ## S3 method for class 'quadrattest' domain(X, ...) ## S3 method for class 'tess' domain(X, ...) ## S3 method for class 'linfun' domain(X, ...) ## S3 method for class 'lintess' domain(X, ...) ## S3 method for class 'im' domain(X, ...) ## S3 method for class 'layered' domain(X, ...) ## S3 method for class 'distfun' domain(X, ...) ## S3 method for class 'nnfun' domain(X, ...) ## S3 method for class 'funxy' domain(X, ...) ## S3 method for class 'rmhmodel' domain(X, ...) ## S3 method for class 'leverage.ppm' domain(X, ...) ## S3 method for class 'influence.ppm' domain(X, ...)
X |
A spatial object such as a point pattern (in any number of dimensions), line segment pattern or pixel image. |
... |
Extra arguments. They are ignored by all the methods listed here. |
from |
Character string. See Details. |
The function domain
is generic.
For a spatial object X
in any number of dimensions,
domain(X)
extracts the spatial domain in which X
is
defined.
For a two-dimensional object X
, typically domain(X)
is the same as Window(X)
.
The exception is that, if X
is a point pattern on a linear network
(class "lpp"
) or a point process model on a linear network
(class "lppm"
), then domain(X)
is the linear network
on which the points lie, while Window(X)
is the two-dimensional
window containing the linear network.
The argument from
applies when X
is a fitted
point process model
(object of class "ppm"
, "kppm"
or "dppm"
).
If from="data"
(the default),
domain
extracts the window of the original point
pattern data to which the model was fitted.
If from="covariates"
then domain
returns the
window in which the spatial covariates of the model were provided.
A spatial object representing the domain of X
.
Typically a window (object of class "owin"
),
a three-dimensional box ("box3"
), a multidimensional
box ("boxx"
) or a linear network ("linnet"
).
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.
domain(cells) domain(bei.extra$elev) domain(chicago)