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From: alain@elevia.UUCP (W.A.Simon)
Newsgroups: comp.theory.dynamic-sys,sci.crypt,sci.math.stat
Subject: Re: Can Chaos Be Predictable?
Keywords: chaos, predictability
Message-ID: <1991Jun22.140127.3984@elevia.UUCP>
Date: 22 Jun 91 14:01:27 GMT
References: <1991Jun20.194552.15875@cunews.carleton.ca> <1991Jun22.133638.3258@elevia.UUCP>
Organization: The W.A.Simon Wild Life Fund
Lines: 16

In <1991Jun22.133638.3258@elevia.UUCP> alain@elevia.UUCP (W.A.Simon) writes:
>	Which brings me back to the Ulam sequences we discussed the
>	other day (aka hailstone numbers).  Are the odd/even transitions
>	in the sequences known to contain identifiable patterns?  In
>	other words, would a string of 0's and 1's matching, respectively,
>	even numbers and odd numbers in the sequence, be considered to be
>	a random bit stream?
	
	Before I get skewered on a Hilbert curve, let me rephrase
	this.  Would the tools of statistical analysis (Chi-Square,
	etc...) identify that this sequence is not random ?


-- 
William "Alain" Simon
                                                   UUCP: alain@elevia.UUCP