DAAG (version 0.58)

overlap.density: Overlapping Density Plots

Description

Densities for two independent samples are estimated and plotted.

Usage

overlap.density(x0, x1, ratio=c(0.05, 20), compare.numbers=TRUE, 
plotit=TRUE, gpnames=c("Control", "Treatment"), xlab="Score")

Arguments

x0

control group measurements

x1

treatment group measurements

ratio

the range within which the relative numbers of observations from the two groups are required to lie. [The relative numbers at any point are estimated from (density1*n1)/(density0*x0)]

compare.numbers

If TRUE (default), then density plots are scaled to have total area equal to the sample size; otherwise total area under each density is 1

plotit

If TRUE, a plot is produced

gpnames

Names of the two samples

xlab

Label for x-axis

See Also

t.test

Examples

attach(two65)
overlap.density(ambient,heated)
t.test(ambient,heated)