[R] add lines() to 1st plot in layout() after calling 2nd plot()?
baptiste auguie
baptiste.auguie at googlemail.com
Mon Oct 12 20:17:11 CEST 2009
Interesting, I hadn't tried this but it probably explains why
navigation to different regions of a layout is neither documented nor
advisable.
Yet another alternative is to use Grid graphics. In particular,
1- lattice or ggplot2 provide ways to arrange several plots in a
rectangular layout, with several options to add output to a specific
panel (but they do require quite a different approach to the creation
of plots)
2- for simple enough plots (or for brave users) you could also use
low-level grid commands, and navigate to different viewports
arbitrarily placed on a page.
3- the gridBase package provides a way to combine (with some
limitations) the power of grid layouts and the output produced with
base graphics.
Best,
baptiste
2009/10/12 Greg Snow <Greg.Snow at imail.org>:
> This only works if all the plots are the same size and the defaults are used for the margins. Try it with different sized figure regions in layout, the added lines don't match at the end.
>
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> greg.snow at imail.org
> 801.408.8111
>
>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>> project.org] On Behalf Of baptiste auguie
>> Sent: Sunday, October 04, 2009 3:33 AM
>> To: r-help
>> Subject: Re: [R] add lines() to 1st plot in layout() after calling 2nd
>> plot()?
>>
>> Hi,
>>
>> Try this,
>>
>> dev.new()
>> layout(matrix(1:4,2, by=T))
>>
>> plot(1:10,main="top left plot")
>> plot(1:10,main="top right plot")
>> plot(1:10,main="bottom left plot")
>> plot(1:10,main="bottom right plot")
>>
>> for (ii in 1:2){
>> for (jj in 1:2){
>> par(mfg=c(ii,jj))
>> text(5,2, lab=paste("plot #:",ii,",",jj,sep=""))
>> }
>> }
>> par(mfg=c(1,1))
>> lines(c(3:7,7:3),col="red")
>>
>> HTH,
>>
>> baptiste
>> 2009/10/4 Marianne Promberger <marianne.promberger at kcl.ac.uk>:
>> > Thanks for the quick reply. However ...
>> >
>> > David Winsemius <dwinsemius at comcast.net> 03-Oct-09 20:50:
>> > MP> layout(matrix(c(1,2),1))
>> > MP> plot(1:10,main="left plot")
>> > MP> plot(10:1,main="right plot")
>> > MP> lines(c(3:7,7:3),col="red")
>> > MP>
>> > MP> but of course now lines() gets added to the "right plot". I
>> > MP>
>> > MP> Is there any way to make the lines() go to the fist plot ("left
>> > MP> plot")?
>> >>
>> >> If you look at layout's help page there appears to be a worked
>> example
>> >> of an even more complex task. The answer appears to be assingning
>> >> numbers to regions and then inserting par(mar= with an
>> appropriately
>> >> constructed destination arguments prior to each added piece.
>> >
>> > Sorry, but I fail to find the solution in the page returned by
>> > ?layout, assuming that's what you mean.
>> >
>> > Yes, the numbers in the matrix given to layout() give the order of
>> > where plots will be put, so
>> >
>> > layout(matrix(c(2,1),1))
>> >
>> > then
>> >
>> > plot(1:10,main="left plot")
>> > plot(10:1,main="right plot")
>> > lines(c(3:7,7:3),col="red")
>> >
>> > puts "left plot" on the right hand side and "right plot" on the
>> > left. But the lines() still go to the "right plot" plot (now on the
>> > left hand side) which gets called last.
>> >
>> > The par(mar ... of the "scatterplot with marginal histograms" example
>> > just set the margins of the histogram plots, then they get plotted to
>> > the region with the next number given in the layout() matrix.
>> >
>> > Maybe I'm missing something.
>> >
>> > Thanks,
>> >
>> > Marianne
>> >
>> >>
>> >> --
>> >> David
>> >>
>> >> On Oct 3, 2009, at 3:15 PM, Marianne Promberger wrote:
>> >>
>> >>> Dear R users,
>> >>>
>> >>> I create a graphic with two plots side by side using layout(), like
>> >>> this:
>> >>>
>> >>> layout(matrix(c(1,2),1))
>> >>> plot(1:10,main="left plot")
>> >>> lines(c(3:7,7:3),col="red")
>> >>> plot(10:1,main="right plot")
>> >>>
>> >>> The lines() obivously get added to the "left plot" plot.
>> >>>
>> >>> Now, I'm trying to write a function that builds up a plot bit by
>> bit
>> >>> to
>> >>> then include it in a LaTeX presentation with overlays. I'm using
>> >>> dev.copy(), and it would make my life much easier (because in fact
>> I
>> >>> call all sorts of additional axis() etc after plot) if I could call
>> >>> the above commands in this order:
>> >>>
>> >>> layout(matrix(c(1,2),1))
>> >>> plot(1:10,main="left plot")
>> >>> plot(10:1,main="right plot")
>> >>> lines(c(3:7,7:3),col="red")
>> >>>
>> >>> but of course now lines() gets added to the "right plot". I
>> >>>
>> >>> Is there any way to make the lines() go to the fist plot ("left
>> >>> plot")?
>> >>>
>> >>> Marianne
>> >>>
>> >>
>> >> David Winsemius, MD
>> >> Heritage Laboratories
>> >> West Hartford, CT
>> >>
>> >> ______________________________________________
>> >> R-help at r-project.org mailing list
>> >> https://stat.ethz.ch/mailman/listinfo/r-help
>> >> PLEASE do read the posting guide http://www.R-project.org/posting-
>> guide.html
>> >> and provide commented, minimal, self-contained, reproducible code.
>> >
>> > --
>> > Marianne Promberger PhD, King's College London
>> > http://promberger.info
>> > R version 2.9.2 (2009-08-24)
>> > Ubuntu 9.04
>> >
>> > ______________________________________________
>> > R-help at r-project.org mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide http://www.R-project.org/posting-
>> guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>> >
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-
>> guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
More information about the R-help
mailing list