# [R] How to Adaptively Set Up the Coordinate Range of Multiple Graphs in One Figure

baptiste auguie baptiste.auguie at googlemail.com
Tue Aug 31 12:37:25 CEST 2010

```Hi,

It's easy with ggplot2,

library(ggplot2)

## create an empty plot
p <- ggplot(map=aes(x,y))

## create a dummy list of data.frames with different ranges
d <- replicate(4, data.frame(x=sample(1:10,1)+rnorm(10),
y=sample(1:10,1)+rnorm(10)),
simplify=FALSE)

## add lines to the plot step by step
for(ii in seq_along(d))
p <- p + geom_line(data = d[[ii]], color=ii)

HTH,

baptiste

On 31 August 2010 12:26, Wonsang You <you at ifn-magdeburg.de> wrote:
>
> Hi, R-Helpers,
>
> I would like to ask about multiple graphs in one figure. I tried to execute
> the following codes.
>
>  xlim <- c(1,100)
>
> ylim <- c(1,4)
>
> plot(NA, xlim=xlim, ylim=ylim)
>
>
>> x <- c(1:100)
>
> for(j in seq(1,10,by=1)) {
>
>     y <- j*x^2+log(j)
>
>     lines(x, y)
>
> }
>
>
> In the above codes, I had to  arbitrarily set up the coordinate range of the
> figure in advance before calculating the values y. (seexlim and ylim)
> In results, the figure did not contain all data since most of data were
> outside the predefined range.
> I am wondering about how to control xlim and ylim adaptive to the real range
> of data, in order to include all data in the figure.
> Thank you for your great help and contribution.
>
> Best Regards,
> Stephen You
>
>
> -----
> --
> Wonsang You
> Special Lab Non-Invasive Brain Imaging
> Leibniz Institute for Neurobiology
> http://www.ifn-magdeburg.de
> --
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>
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--
____________________

Dr. Baptiste Auguié

Departamento de Química Física,