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  An attempt is made to write output as far as possible to \code{file}
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  An attempt is made to write output as far as possible to \code{file}
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  if there is an error in evaluating the expressions, but for
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  if there is an error in evaluating the expressions, but for
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  \code{file = NULL} all output will be lost.
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  \code{file = NULL} all output will be lost.
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}
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}
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\value{
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\value{
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  A character string (if \code{file=NULL}), or invisible \code{NULL}.
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  A character string (if \code{file = NULL}), or invisible \code{NULL}.
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}
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}
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\seealso{ \code{\link{sink}}, \code{\link{textConnection}} }
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\seealso{ \code{\link{sink}}, \code{\link{textConnection}} }
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\examples{
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\examples{
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capture.output(1+1, 2+2)
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capture.output(1+1, 2+2)
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capture.output({1+1; 2+2})
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capture.output({1+1; 2+2})
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\dontrun{
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\dontrun{
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## on Unix with enscript available
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## on Unix with enscript available
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ps <- pipe("enscript -o tempout.ps","w")
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ps <- pipe("enscript -o tempout.ps","w")
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capture.output(example(glm), file=ps)
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capture.output(example(glm), file = ps)
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close(ps)
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close(ps)
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}
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}
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}
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}
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\keyword{utilities}
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\keyword{utilities}