[R] creating large graphs

Ben Bolker bolker at ufl.edu
Sat Oct 27 21:18:33 CEST 2007

Jesse D Lecy wrote:
> [snip]
>   Does anyone know how to make a large graph so that I can print it and
> view the details?  I have tried changing the graph size and outputting the
> chart to an image of pdf file, but I keep getting an error:
>> jpeg(file="dendrogram.jpeg")
>> par(fin=c(20,20))
>> plot(eq2) 
> Error in plot.new() : figure region too large
>> dev.off()

   Use the width= and height= (and possibly units=) 
arguments to jpeg() to specify the width
and height of the graphic

   I would suggest that png() is more appropriate than jpeg() for this
kind of graph in any case, unless you have some specific reason to
use JPEG (which were designed for continuously varying images like
photographs, and will produce artifacts when trying to compress
a line graph).

  Ben Bolker
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