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Re: vector of bin indices using histogram? [message #50762 is a reply to message #50757]

Wed, 18 October 2006 10:09

Jean H.
Messages: 472
Registered: July 2006

Senior Member

> intel pentium 4 (idl 6.2):
>
> p=fltarr(5d7)
> t=systime(1) & b=p*.5 &print,systime(1)-t
> 0.33394289
> t=systime(1) & b=p/2. &print,systime(1)-t
> 0.82017112
>
> Ratio: 2.5

IDL> p=fltarr(5d7)
IDL> t=systime(1) & b=p*.5 &print,systime(1)-t
0.23399997
IDL> t=systime(1) & b=p/2. &print,systime(1)-t
0.25000000
.... ratio = 1.06 here... Pentium 4, windows XP pro, idl 6.3
I guess the operating system has some influence too?!

Jean

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[Message index]

		Re: vector of bin indices using histogram? By: Paolo Grigis on Thu, 19 October 2006 00:45
		Re: vector of bin indices using histogram? By: greg michael on Wed, 18 October 2006 14:42
		Re: vector of bin indices using histogram? By: greg michael on Wed, 18 October 2006 14:07
		Re: vector of bin indices using histogram? By: Foldy Lajos on Wed, 18 October 2006 11:12
		Re: vector of bin indices using histogram? By: C. E. Ordonez on Wed, 18 October 2006 10:57
		Re: vector of bin indices using histogram? By: Jean H. on Wed, 18 October 2006 10:09
		Re: vector of bin indices using histogram? By: Paolo Grigis on Wed, 18 October 2006 09:56
		Re: vector of bin indices using histogram? By: Paolo Grigis on Wed, 18 October 2006 09:27
		Re: vector of bin indices using histogram? By: Foldy Lajos on Wed, 18 October 2006 09:25
		Re: vector of bin indices using histogram? By: David Fanning on Wed, 18 October 2006 09:06
		Re: vector of bin indices using histogram? By: Foldy Lajos on Wed, 18 October 2006 08:53
		Re: vector of bin indices using histogram? By: greg michael on Wed, 18 October 2006 08:38
		Re: vector of bin indices using histogram? By: Foldy Lajos on Wed, 18 October 2006 08:33
		Re: vector of bin indices using histogram? By: David Fanning on Wed, 18 October 2006 08:08
		Re: vector of bin indices using histogram? By: Paolo Grigis on Wed, 18 October 2006 07:47
		Re: vector of bin indices using histogram? By: greg michael on Wed, 18 October 2006 07:00
		Re: vector of bin indices using histogram? By: btt on Wed, 18 October 2006 06:19

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