From murdoch at stats.uwo.ca  Mon Aug  1 16:00:45 2005
From: murdoch at stats.uwo.ca (Duncan Murdoch)
Date: Mon, 01 Aug 2005 10:00:45 -0400
Subject: [Rd] Most accurate timing?
In-Reply-To: <17134.7939.686794.549905@stat.math.ethz.ch>
References: <42EE1A27.7050803@stats.uwo.ca>
	<17134.7939.686794.549905@stat.math.ethz.ch>
Message-ID: <42EE2B0D.9060200@stats.uwo.ca>

On 8/1/2005 9:09 AM, Martin Maechler wrote:
>>>>>> "Duncan" == Duncan Murdoch <murdoch at stats.uwo.ca>
>>>>>>     on Mon, 01 Aug 2005 08:48:39 -0400 writes:
> 
>     Duncan> For a graphics display, I'd like a high resolution
>     Duncan> timer, something like Sys.time(), but it is only
>     Duncan> accurate to a second.  Is there a clock in R that
>     Duncan> gives a finer value?
> 
> Why can't use  proc.time()  ?
> 
> It's help file says
> 
>      The resolution of the times will be system-specific; it is
>      common for them to be recorded to of the order of 1/100
>      second, and elapsed time is rounded to the nearest 1/100.
> 

proc.time()[3] is what I want; I had forgotten about it.

Duncan Murdoch



[Rd] Most accurate timing?
Duncan Murdoch