On Apr 16, 2010, at 6:00 PM, Hua Li wrote:
Hi,
I'm wondering how can I change the position of xlab in truehist.
For example, the following code creats a histogram with 4 bins for
my discrete data. I want each bin to be labelled as 0, 1, 2, or 3 in
the middle, so that it's clear each bin corresponds to each of the
discrete case.
I was thinking of first delete xlab and then add marks myself, but
it doesn't look like it's working. The old label can not be removed
by setting xlab="" or xlab = NULL.
xlab is the annotation for the whole axis... just one string with the
name of the vector unless you offer an alternative... nothing to to
with lableing the ticks. You want to look at the axis funtion and the
at= and labels= arguments. See example at bottom of plot.default page.
Thanks for your help!
Hua
#------------------------
x = c(rep(0,10),rep(1,100),rep(2,50), rep(3,30))
library(MASS)
truehist(x,nbins=4)
truehist(x,nbins=4,xlab="")
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