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Re: mean() function [message #46936 is a reply to message #46935]

Tue, 10 January 2006 15:00

K. Bowman
Messages: 330
Registered: May 2000

Senior Member

In article <1136932449.216202.42760@g44g2000cwa.googlegroups.com>,
biocpu@yahoo.com wrote:

> y = fltarr(1008879)+35

Looks like roundoff error to me

IDL> y = fltarr(1008879)+35
IDL> print, mean(y)
35.0497
IDL> print, mean(y, /double)
35.000000
IDL> y = dblarr(1008879)+35
IDL> print, mean(y)
35.000000

Ken Bowman

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[Message index]

		Re: mean() function By: Maarten[1] on Thu, 12 January 2006 03:07
		Re: mean() function By: Paolo Grigis on Wed, 11 January 2006 06:19
		Re: mean() function By: Nigel Wade on Wed, 11 January 2006 01:49
		Re: mean() function By: Kenneth P. Bowman on Tue, 10 January 2006 19:22
		Re: mean() function By: biocpu on Tue, 10 January 2006 16:18
		Re: mean() function By: Paul Van Delst[1] on Tue, 10 January 2006 15:13
		Re: mean() function By: Paul Van Delst[1] on Tue, 10 January 2006 15:09
		Re: mean() function By: David Fanning on Tue, 10 January 2006 15:07
		Re: mean() function By: K. Bowman on Tue, 10 January 2006 15:00
		Re: mean() function By: Foldy Lajos on Tue, 10 January 2006 14:53
		Re: mean() function By: R.Bauer on Sun, 15 January 2006 00:58
		Re: mean() function By: savoie on Thu, 12 January 2006 08:49

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