x and
y components, and produces
back to back histograms of the two datasets.
histbackback(x, y, brks=NULL, xlab=NULL, axes=TRUE, probability=FALSE,
xlim=NULL, ylab='', ...)
x with two components. If the
components have names, they will be used to label the axis
(modification FEH).
TRUE, then the x-axis corresponds to the units for a
density. If
FALSE, then the units are counts.
ylim=c(-20,20).
Pat Burns
Salomon Smith Barney
London
pburns@dorado.sbi.com
options(digits=3)
set.seed(1)
histbackback(rnorm(20), rnorm(30))
fool <- list(x=rnorm(40), y=rnorm(40))
histbackback(fool)
age <- rnorm(1000,50,10)
sex <- sample(c('female','male'),1000,TRUE)
histbackback(split(age, sex))
agef <- age[sex=='female']; agem <- age[sex=='male']
histbackback(list(Female=agef,Male=agem), probability=TRUE, xlim=c(-.06,.06))