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 James Annan
> Sent: Tuesday, April 12, 2011 11:06 PM
> To: jim holtman
> Cc: r-help at r-project.org
> Subject: Re: [R] multiple lines on multiple plots
>
> Thanks for all the replies. Yes, I agree that calculating all the data
> first is a simple solution which also has the benefit of making the
> axis
> choice easier to get right, but on the downside it requires storing an
> order of magnitude more output than my original sequential approach
> would have done. Not actually a problem for me right now, but may be
> for
> larger cases and certainly seems inelegant in general. So I'm still
> interested to know if there is some practical way of returning to an
> earlier plot. I suppose I could artificially scale the data to make it
> match the wrong axes. But that would be horrible.
>
> (The example was deliberately simple, but in reality I want to loop
> through a bunch of simple simulations each of which generates several
> types of output, and create a graph for each type of output.)
>
> James
>
> On 13/4/11 1:25 AM, jim holtman wrote:
> > Instead of trying to go back to a previous plot, gather up all the
> > data for the plots and generate each one with the appropriate data.
> > This is much easier than trying to keep track of what the dimensions
> > are. Also if the data you want to add is outside the plot, then you
> > have issues with clipping; knowing what the dimensions of all the
> data
> > you want to plot is a reasonable way to go.
> >
> > On Tue, Apr 12, 2011 at 9:30 AM, James Annan<jdannan at jamstec.go.jp>
> wrote:
> >> I'm sure this must be trivial, but I'm a novice with R and can't
> work out
> >> how to handle the axes when I am constructing multiple plots on a
> page and
> >> try to return to a previous one to put multiple data sets it.
> >>
> >> A simple example:
> >> ---
> >> x<- 1:10
> >> y<- (1:100)*3
> >> par(mfcol=c(2,1))
> >> plot(x)
> >> plot(y)
> >>
> >> par(mfg=c(1,1))
> >> lines(x)
> >> ---
> >>
> >> The first 5 lines make two plots with a row of dots along the
> diagonal of
> >> each. I intended the last two statements to add a line to the first
> plot,
> >> that runs along the same data points already plotted there. However,
> >> although the commands add a line to the top plot, it is clearly
> using the
> >> axis dimensions of the lower plot. Can someone tell me how to get it
> to use
> >> the axes that are already there?
> >>
> >> Variants like lines(x,xlim=c(1,10)) have no effect.
> >>
> >> Thanks in advance for any help.
> >>
> >> James
> >> --
> >> James D Annan jdannan at jamstec.go.jp Tel: +81-45-778-5618 (Fax 5707)
> >> Senior Scientist, Research Institute for Global Change, JAMSTEC
> >> (The Institute formerly known as Frontier)
> >> Yokohama Institute for Earth Sciences, 3173-25 Showamachi,
> >> Kanazawa-ku, Yokohama City, Kanagawa, 236-0001 Japan
> >> http://www.jamstec.go.jp/frcgc/research/d5/jdannan/
> >>
> >> ______________________________________________
> >> 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.
> >>
> >
> >
> >
>
>
> --
> James D Annan jdannan at jamstec.go.jp Tel: +81-45-778-5618 (Fax 5707)
> Senior Scientist, Research Institute for Global Change, JAMSTEC
> (The Institute formerly known as Frontier)
> Yokohama Institute for Earth Sciences, 3173-25 Showamachi,
> Kanazawa-ku, Yokohama City, Kanagawa, 236-0001 Japan
> http://www.jamstec.go.jp/frcgc/research/d5/jdannan/
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-
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> and provide commented, minimal, self-contained, reproducible code.