[R] System.time

[Wacek Kusnierczyk]

Wacek Kusnierczyk wrote:
>
> to contribute my few cents, here's a simple benchmarking routine,
> inspired by the perl module Benchmark.  it allows one to benchmark an
> arbitrary number of expressions with an arbitrary number of
> replications, and provides a summary matrix with selected timings.
>
>   

<snip>

> it's rudimentary and not fool-proof, but might be helpful if used with
> care.  (the nested do.call-rbind-lapply sequence can surely be
> simplified, but i could not resist the pattern.  someone once wrote that
> if you need more than three (five?) levels of indentation in your code,
> there must be something wrong with it;  presumably, he was a fortran
> programmer.)
>   

i have cleaned-up the code, removing the fancy nested structure.  the
code plus detailed documentation is available from googlecode [1], and i
stop the self-marketing here.

vQ

[1] http://code.google.com/p/rbenchmark/