[R] Histograms per coding variable

[Marc Schwartz]

In addition, you can use something like:

hist(fr.wt[site == "glen"],nclass = 20)

if you wish to access just one of the subsets at a time within 'site'.

-----Original Message-----
From: owner-r-help at stat.math.ethz.ch
[mailto:owner-r-help at stat.math.ethz.ch]On Behalf Of Ben Bolker
Sent: Wednesday, December 05, 2001 6:22 AM
To: Smit, A, Albertus, Dr
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] Histograms per coding variable



 Something like

tapply(fr.wt,site,hist,nclass=20)

e.g.:

a <- runif(100)
f <- factor(rep(1:10,rep(10,10)))
par(mfrow=c(3,4))
tapply(a,f,hist)

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._