[R] R on the web

David Brahm brahm at alum.mit.edu
Mon Mar 18 16:37:57 CET 2002


Arne Mueller <a.mueller at icrf.icnet.uk> wrote:
> I'd like to create diagrams for dynamic web-pages via a cgi-script that
> itself uses R. Sadly, I found out that the png and jpeg devices need an
> X-server :-( , so I cannot use these nice devices. Does any one have any
> experience using R for on-the-flycreation of graphics for web-pages...?

One possibility is to generate a pdf file, then redirect the user's browser to
that file.  Here are a few relevant lines from such a cgi script:

## Inside the R code:
  pdf("mynewgraph.pdf")
  ## Graphics commands
  dev.off()
## After R has run:
  print "<META HTTP-EQUIV=Refresh CONTENT='0; URL=mynewgraph.pdf'>";

-- 
                              -- David Brahm (brahm at alum.mit.edu)
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