[R] sizing and saving graphics in R
michael watson (IAH-C)
michael.watson at bbsrc.ac.uk
Thu May 31 10:28:54 CEST 2007
There is also the functions pdf(), jpeg(), bmp() and png()
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Murray Pung
Sent: 31 May 2007 01:22
To: Felicity Jones
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] sizing and saving graphics in R
I use the savePlot function for saving graphics. The following will save
active graphics panel in your working directory, in format wmf, which I
has a high resolution. Check out other possible formats in help.
savePlot(filename = "myfilename",type = c("wmf"))
On 31/05/07, Felicity Jones <felicity.jones at stanford.edu> wrote:
> Dear R wizards,
> I am seeking advice on graphics in R. Specifically, how to manipulate
> the size and save a plot I have produced using the LDheatmap library.
> I confess I am relatively new to graphics in R, but I would greatly
> appreciate any suggestions you may have.
> LDheatmap produces a coloured triangular matrix of pairwise
> associations between 600 genetic markers in my dataset. Initially the
> graphical output was confined to the computer screen, such that each
> pairwise marker association was displayed as approximately 1 pixel
> (too small for me to interpret).
> I have successfully managed to play with the LDheatmap function to
> enlarge the size of viewport by changing the following code in
> heatmapVP <- viewport(width = unit(0.8, "snpc"), height = unit(0.8,
> heatmapVP <- viewport(width = unit(25, "inches"), height = unit(25,
> "inches"), name=vp.name)
> This produces a much larger plot (so big that the majority is not seen
> on the screen). I would like to save the entire thing so that I can
> import it into photoshop or some other image software.
> My problem is that when I save using the R graphics console
> (File->Save As->bmp), it only saves the section I can see on the
> screen. Any suggestions on how to save the whole plot or manipulate
> the plot so I get higher resolution would be much appreciated.
> Thanks for your help in advance,
> Dr Felicity Jones
> Department of Developmental Biology
> Stanford University School of Medicine
> Beckman Center
> 279 Campus Drive
> Stanford CA 94305-5329
> R-help at stat.math.ethz.ch mailing list
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
Statistician, Datapharm Australia Pty Ltd
0404 273 283
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