guido at hal.stat.unipd.it
Tue Oct 19 16:56:03 CEST 1999
On Tue, Oct 19, 1999 at 08:35:36AM -0400, Alan T. Arnholt wrote:
> Dear R users,
> I just noticed that the function "dos.time" is no longer
> included with
> platform Windows
> What if any is the difference between "system.time" and the
> older "dos.time"?
I am not sure R has had 'dos.time' in the past.
Anyway, the third entry of 'system.time(expr)' is equal to
Splus 'dos.time(expr)', i.e., reports the total (elapsed) time
used to evaluate 'expr'.
Note that the first and second entries (avalaible only under Unix and WinNT
but not under Win9X) let to a better timing of 'expr', in particular
the first one which gives the CPU time spent by the R process to evaluate
Hoping this can help,
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