On Tue, Jun 26, 2012 at 10:02 AM, John Kane <jrkrideau@inbox.com> wrote:

> Why not just plot the two histograms on the same scale in a 2 panel plot?
>

I think OP request was "for comparison". Two panels may do, but why not a
barplot of the histograms in the same panel ?

barplot( rbind(
hist(rbeta(30,2,4),breaks=seq(0,1,.1),plot=F)$counts,
hist(rbeta(30,6,8),breaks=seq(0,1,.1),plot=F)$counts),
beside=T)

see str(hist(yourdata)) or ?hist

Cheers
Ilai



> John Kane
> Kingston ON Canada
>
>
> > -----Original Message-----
> > From: mblig@sun.ac.za
> > Sent: Tue, 26 Jun 2012 15:24:55 +0200
> > To: r-help@r-project.org
> > Subject: [R] plotting two histograms on one plot with hist function
> >
> > I would like to plot two data sets (frequency (y-axis) of mean values for
> > 0-1(x=axis)) on a single histogram for comparison. The hist() only allow
> > the overlay of two histograms, and although barplot() allows beside=TRUE,
> > it does not show frequency values (like hist) but rather all of the
> > values. Is there any way that I can use the hist() to plot two data sets
> > similar to the barplot(). Any help or advice will be appreciated!
> >
> > Kind regards,
> > Marguerite
> >
> >
> >
> >
> >
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