The R function capture.output() can be used to “collect” the output of functions such as cat() and print() to strings. For example, > s <- capture.output({ + cat("Hello\nworld!\n") + print(pi) + }) > s [1] "Hello" "world!" "[1] 3.141593" More precisely, it captures all output sent to the standard output and returns a character vector where each element correspond to a line of output. By the way, it does not capture the output sent to the standard error, e.

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Henrik Bengtsson

MSc CS | PhD Math Stat | Associate Professor | R

Associate Professor