plot.hdrconf: Plot HDRs with confidence intervals

Description Usage Arguments Value Author(s) References See Also Examples

View source: R/plot.hdr.conf.R

Description

Plots Highest Density Regions with confidence intervals.

Usage

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## S3 method for class 'hdrconf'
plot(x, den, ...)

Arguments

x

Output from hdrconf.

den

Density of data as list with components x and y.

...

Other arguments are passed to plot.

Value

None

Author(s)

Rob J Hyndman

References

Hyndman, R.J. (1996) Computing and graphing highest density regions American Statistician, 50, 120-126.

See Also

hdrconf

Examples

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x <- c(rnorm(100,0,1),rnorm(100,4,1))
den <- density(x,bw=bw.SJ(x))
trueden <- den
trueden$y <- 0.5*(exp(-0.5*(den$x*den$x)) + exp(-0.5*(den$x-4)^2))/sqrt(2*pi)
sortx <- sort(x)

par(mfcol=c(2,2))
for(conf in c(50,95))
{
	m <- hdrconf(sortx,trueden,conf=conf)
	plot(m,trueden,main=paste(conf,"% HDR from true density"))
	m <- hdrconf(sortx,den,conf=conf)
	plot(m,den,main=paste(conf,"% HDR from empirical density\n(n=200)"))
}

robjhyndman/hdrcde documentation built on Sept. 16, 2020, 5:02 a.m.