Re: [R] Suppressing output (e.g. from cat)

From: hadley wickham <>
Date: Tue, 24 Jun 2008 15:03:24 +0200

>> 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) {




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