leafsfirst.adagrid: Computes a level set tree of a discretized kernel estimator...

In denpro: Visualization of Multivariate Functions, Sets, and Data

Description

Computes a level set tree of a discretized kernel estimator with an adaptive grid .

Usage

leafsfirst.adagrid(pcf)

Arguments

pcf	piecewise constant function; output of "pcf.greedy.kernel"

Value

a level set tree

Note

Function pcf.greedy.kernel is in package "delt"

Author(s)

Jussi Klemela

References

http://jussiklemela.com/Art/volume

See Also

leafsfirst

Examples

# generate data
seed<-1
n<-50
d<-2
l<-3; D<-4; c<-D/sqrt(2)
M<-matrix(0,l,d); M[2,]<-c; M[3,]<--c
sig<-matrix(1,l,d)
p<-rep(1/l,l)
dendat<-sim.data(type="mixt",n=n,M=M,sig=sig,p=p,seed=seed)

h<-(4/(d+2))^(1/(d+4))*n^(-1/(d+4))*apply(dendat,2,sd)
minobs<-3
#pcf<-pcf.greedy.kernel(dendat,h,minobs=minobs,type="greedy")
#lst<-leafsfirst.adagrid(pcf)

denpro documentation built on May 2, 2019, 8:55 a.m.