[R] How to plot two graphs on one single plot?

[Yun Zhang]

Thanks. Now R plots two graphs on one plot.
Yet they are still on two graphs, vertically parallelized with each other.

But what I want to do is actually plotting two distribution on one 
single graph, using the same x and y axis. Like:
|
|
|               (dist2)
|   (dist 1)
|
--------------------------->

Is it possible to do that?

Thanks,
Yun

Henrique Dallazuanna wrote:
> par(mfrow=c(2,1))
> #your plot
> #after plot
> par(mfrow=c(1,1))
>
> On 23/02/07, *Yun Zhang* <yunzhang at princeton.edu 
> <mailto:yunzhang at princeton.edu>> wrote:
>
>     Hi,
>
>     I am trying to plot two distribution graph on one plot. But I dont
>     know
>     how. I set them to the same x, y limit, even same x, y labels.
>
>     Code:
>     x1=rnorm(25, mean=0, sd=1)
>     y1=dnorm(x1, mean=0, sd=1)
>
>     x2=rnorm(25, mean=0, sd=1)
>     y2=dnorm(x2, mean=0, sd=1)
>     plot(x1, y1, type='p', xlim=range(x1,x2), ylim=range(y1, y2),
>     xlab='x',
>     ylab='y')
>     plot(x2, y2, type='p', col="red", xlab='x', ylab='y')
>
>     They just dont show up in one plot.
>
>     Any hint will be very helpful.
>
>     Thanks,
>     Yun
>
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>
> -- 
> Henrique Dallazuanna
> Curitiba-Paraná
> Brasil