adaptive.density
Adaptive Estimate of Intensity of Point Pattern
Computes an adaptive estimate of the intensity function of a point pattern.
Usage
adaptive.density(X, …, method=c("voronoi","kernel"))
Arguments
- X
Point pattern (object of class
"ppp"
or"lpp"
).- method
Character string specifying the estimation method
- …
Additional arguments passed to
densityVoronoi
ordensityAdaptiveKernel
.
Details
This function is an alternative to density.ppp
. It
computes an estimate of the intensity function of a point pattern
dataset. The result is a pixel image giving the estimated intensity.
If method="voronoi"
the data are passed to the function
densityVoronoi
which estimates the intensity using
the Voronoi-Dirichlet tessellation.
If method="kernel"
the data are passed to the function
densityAdaptiveKernel
which estimates the intensity
using a variable-bandwidth kernel estimator.
Value
A pixel image (object of class "im"
) whose values are
estimates of the intensity of X
.
See Also
density.ppp
,
densityVoronoi
,
densityAdaptiveKernel
,
im.object
.
Examples
# NOT RUN {
plot(adaptive.density(nztrees, 1), main="Voronoi estimate")
# }