mmmh, yes this method works...
but I have to overlap this two graphs:
> xyplot( a ~ b | sites, data=dataset, col="red")
> xyplot( c ~ b | sites, data=dataset, col="blue")
a, b and c are columns in the same dataset. "Sites" is also a column in the
dataset, but it's a factorial variables.
How can I use your method?
sorry for my ignorance!
Francesco Nutini
> Date: Fri, 10 Dec 2010 10:13:00 -0800
> From: ehl...@ucalgary.ca
> To: nutini.france...@gmail.com
> CC: r-help@r-project.org
> Subject: Re: [R] [r] overlap different line in a xyplot (lattice)
>
> On 2010-12-10 07:04, Francesco Nutini wrote:
> >
> > dear [R] users,
> > is there a way to plot different data (but with the same x-variables) in
> > the same xyplot window?
> > There are already a similar question, but the answer is not enought
> > explanatory...
>
> Something like this?
>
> x <- rep(1:10, 2)
> y1 <- rnorm(10); y2 <- rnorm(10) + 2
> y <- c(y1, y2)
> g <- gl(2, 10)
> xyplot( y ~ x, groups = g, type = 'b')
>
> Peter Ehlers
>
> >
> >
> > Thanks a lot,
> > Francesco
> >
>
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