[R] figure margins too large for a barplot in png, pdf ok

[Prof Brian Ripley]

What were H & W?  For png() they are (by default) in pixels, for pdf() in 
inches.

You haven't told us your OS, but I guess Mac OS.  Please update to R 
2.7.0: that offers you two new png() devices for higher-quality plots, and 
various other improvements.  (If you want to use the cairo-based png() at 
other than 72dpi, use R-patched or remember that the pointsize is 
mistakenly in pixels.)

On Tue, 6 May 2008, Alexy Khrabrov wrote:

> I've used to have a script with a barplot command it in, preceded by a png:
>
> png(graph.file,height=H,width=W)
> barplot(t,names.arg=breaks[2:(length(t)+1)],tck=gridlines)
>
> -- worked before R 2.6.2.  When I tried it in R 2.6.2, which I have for a 
> while but didn't run with that script, it complained, the margins too large, 
> and I've googled the messages from our list where neither height nor width 
> had been specified.  Yet here they are specified here.

Not in this email -- very likely they are too small.

> Calling same from R GUI draws the nice barplot in Quartz, and replacing png 
> with pdf or postscript does fine.  Other graphs work fine with png.  Jpeg 
> also complains; when I try various values for H or W, still the same -- how 
> can I subdue the png?
>
> Cheers,
> Alexy
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595