[R] How to get the runtime as well as the result?

Peng Yu pengyu.ut at gmail.com
Fri Dec 11 03:12:43 CET 2009


On Thu, Dec 10, 2009 at 7:03 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 10 December 2009 at 18:12, Peng Yu wrote:
> | If I use system.time() to measure the runtime of an expression, I will
> | not get the result. Is there a way to measure the runtime and get the
> | result as well?
>
> Use an assignment inside system.time():
>
>    R> system.time( m <- max(rnorm(1e6)) )
>       user  system elapsed
>      0.328   0.008   0.340
>    R> m
>    [1] 4.993
>    R>

I see. In this case, I'll have to use '<-' rather than '='.




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