Hi Paul,
I think lattice's histogram will do what you want, and in a friendlier
manner. Take a look at this example:
require(lattice)
a - data.frame(draw = as.vector(mapply(rnorm, rep(100, 4), rep(0, 4),
1:4)),
sd = factor(paste(sd =, rep(1:4, each = 100
Go ahead and
Schwarz,Paul wrote:
Hi,
I've been passing the hist() function to tapply() to quickly generate histograms based
on the list of factors supplied to tapply(). However, I have not figured out how to
generate titles for each of the histograms, which paste in the unique values of the
list factors as
