[BioC] how to reduce the file size of scatter plot matrix

James Wettenhall wettenhall at wehi.edu.au
Tue Jul 13 06:21:50 CEST 2004


On Mon, 12 Jul 2004, Caimiao Wei wrote:
> I am trying to get the scatter plot matrix (function "pairs")
> and MVA plot (function "mva.pairs") of multiple affy chips.
> When I use postscript() or pdf() to save the graphs generated
> from 12 affy mouse chips using the "pairs" function, the size
> of the file is about 500 MB. I would appreciate any
> suggestions that can effectively reduces the size of these plots.

Have a look at the hexbin package (available from Bioconductor)
by Dan Carr, Nicholas Lewin-Koh and Martin Maechler.

It has a nice vignette, available in you R library directory :


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