How to draw multiple plots in a single figure?

[Sang Chul Choi]

Hi,

I used to use
> par(mfrow=c(2,2))

to plot multiple plots in a single figure. I have tried to use it with
gplot. It just draws a single figure. Should I use some other tricks
in gplot e.g., facet_grid? Can't I use mfrow any more?

I will appreciate any help.

Thank you,

Sang Chul

[Luciano Selzer]

Hi Sang Chul,

 

you must use viewports with ggplot2 in order to obtain multiple graphics in a single figure. As far as I know par options doesn't affect graphics made with ggplot2.

Here is an example code to do what you want. I hope it helps.

Bye 

 

p1 = ggplot(...)+...

p2 = ggplot(...)+...

p3 = ggplot(...)+...

p4 = ggplot(...)+...

 

vplayout <- function(x, y) viewport(layout.pos.row=x, layout.pos.col=y)

grid.newpage()

pushViewport(viewport(layout=grid.layout(2,2)))

 

print(p1, vp=vplayout(1,1))

print(p2, vp=vplayout(1,2))

print(p3, vp=vplayout(2,1))

print(p4, vp=vplayout(2,2))

 

2009/8/27 Sang Chul Choi <gos...@gmail.com>

>

>

 

 

 

--

Luciano

 

[baptiste auguie]

Hi,

Same idea using the gridextra package,

source("http://gridextra.googlecode.com/svn/trunk/R/arrange.r")
arrange(p1, p2, p3, p4)


HTH,

baptiste

--
_____________________________

Baptiste Auguié

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

http://newton.ex.ac.uk/research/emag
______________________________

[Osmo Salomaa]

On Aug 27, 9:37 pm, Luciano Selzer <luciano.sel...@gmail.com> wrote:
> you must use viewports with ggplot2 in order to obtain multiple graphics in
> a single figure.

I have a question related to this: when using viewports, is there a
better way to line up the y-axes of two plots drawn on top of each
other than by padding the y-axis labels with zeros or Unicode figure
spaces to the same width with scale_y_continuous(formatter=...)?

[hadley wickham]

> I have a question related to this: when using viewports, is there a
> better way to line up the y-axes of two plots drawn on top of each
> other than by padding the y-axis labels with zeros or Unicode figure
> spaces to the same width with scale_y_continuous(formatter=...)?

Not yet, but there will be in the future - it will be possible to say,
allocate 2 cm for the y axis label, regardless of how much space it
actually needs.

Hadley

--
http://had.co.nz/

[Mike Lawrence]

Will something similar apply to the x-axis and legend? It would be
nice to guarantee that the plot area itself is identical between two
graphs regardless of the axis or legend labels.

--
Mike Lawrence
Graduate Student
Department of Psychology
Dalhousie University

Looking to arrange a meeting? Check my public calendar:
http://tr.im/mikes_public_calendar

~ Certainty is folly... I think. ~

[hadley wickham]

Yes, definitely! You'll be able to control the size of every plot element.
Hadley

--
http://had.co.nz/

[Eve]

This is very cheeky Hadley, but is there a rough time-line available
for the launch of this increased flexibility in controlling plot
parameters for complex plot layouts? Thanks for a really useful couple
of packages by the way.
Eve

On Aug 29, 2:35 pm, hadley wickham <h.wick...@gmail.com> wrote:
> Yes, definitely!  You'll be able to control the size of every plot element.
> Hadley
>
>
>
>
>
> On Sat, Aug 29, 2009 at 5:11 AM, Mike Lawrence<Mike.Lawre...@dal.ca> wrote:
> > Will something similar apply to the x-axis and legend? It would be
> > nice to guarantee that the plot area itself is identical between two
> > graphs regardless of the axis or legend labels.
>

[hadley wickham]

> This is very cheeky Hadley, but is there a rough time-line available
> for the launch of this increased flexibility in controlling plot
> parameters for complex plot layouts? Thanks for a really useful couple
> of packages by the way.

Unfortunately not - I really need a week or so of time to devote to
the problem. Maybe over Christmas.

Hadley

--
http://had.co.nz/