Many thanks Brian and Hadley, the quiet function works well for me. Maybe a
candidate for utils?
Best wishes
Richard.
hadley wickham wrote:
Or:
tc <- textConnection(NULL, "w")
sink(tc)
...
sink()
close(tc)
That is a lot more expensive and subject to
o Use of textConnection(NULL, mode="w") could segfault.
(NEWS for 2.7.1). Output textConnections are convenient, but have quite a
lot of overhead since they need to keep the character vector current.
That's true and I hadn't considered the speed issue. It would be nice
to have an analogue to capture.output though. Maybe:
quiet <- function(x) {
sink(tempfile())
on.exit(sink())
invisible(force(x))
}
?
Hadley
--
Richard D. Pearson [EMAIL PROTECTED]
School of Computer Science, http://www.cs.man.ac.uk/~pearsonr
University of Manchester, Tel: +44 161 275 6178
Oxford Road, Mob: +44 7971 221181
Manchester M13 9PL, UK. Fax: +44 161 275 6204
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