Extract Window of Spatial Object
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.
## 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 'msr' Window(X, ...) ## S3 method for class 'quadrattest' Window(X, ...) ## S3 method for class 'rmhmodel' Window(X, ...)
X |
A spatial object. |
... |
Ignored. |
from |
Character string. See 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
two-dimensional 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.
An object of class "owin"
(see owin.object
)
specifying an observation window.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.
X <- quadratcount(cells, 4) Window(X)
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