utils (version 3.1.0)

capture.output: Send Output to a Character String or File

Description

Evaluates its arguments with the output being returned as a character string or sent to a file. Related to sink in the same way that with is related to attach.

Usage

capture.output(..., file = NULL, append = FALSE)

Arguments

...
Expressions to be evaluated.
file
A file name or a connection, or NULL to return the output as a character vector. If the connection is not open, it will be opened initially and closed on exit.
append
logical. If file a file name or unopened connection, append or overwrite?

Value

A character string (if file = NULL), or invisible NULL.

Details

An attempt is made to write output as far as possible to file if there is an error in evaluating the expressions, but for file = NULL all output will be lost.

See Also

sink, textConnection

Examples

Run this code
require(stats)
glmout <- capture.output(example(glm))
glmout[1:5]
capture.output(1+1, 2+2)
capture.output({1+1; 2+2})
## Not run: 
# ## on Unix with enscript available
# ps <- pipe("enscript -o tempout.ps","w")
# capture.output(example(glm), file = ps)
# close(ps)
# ## End(Not run)

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