ron-r
3/27/2014 - 8:42 AM

From http://stat.ethz.ch/R-manual/R-devel/library/base/html/proc.time.html

## Not run: 
## a way to time an R expression: system.time is preferred
ptm <- proc.time()
for (i in 1:50) mad(stats::runif(500))
proc.time() - ptm

## End(Not run)