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MathGroup Archive 2000

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Re: odd behaviour in rule delayed

  • To: mathgroup at smc.vnet.net
  • Subject: [mg21508] Re: odd behaviour in rule delayed
  • From: Roland Franzius <Roland.Franzius at uos.de>
  • Date: Fri, 14 Jan 2000 02:43:27 -0500 (EST)
  • Organization: RRZN - Newsserver Test
  • References: <851dn1$43k@smc.vnet.net> <200001070520.AAA08503@smc.vnet.net> <85i124$1qh@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Don't see a problem:
In[1]
 kk = 0; newlist = {1, 0, 1, 0, 0, 1} /. (1 :> ++kk)
Out[1]
 {1, 0, 2, 0, 0, 3}
In[2]
  {$Version,$ReleaseNumber} 
Out[2]
  {"4.0 for Microsoft Windows (July 26, 1999)",1}

 
Francisco Gutierrez wrote:
> 
> I have M 4.0, window 95.
> I have a list of 0's and 1's, and I want the one's to perform a consecutive
> numeration. For example, transform {1,0,1,0,0,1} into {1,0,2,0,0,3}.
> 
> The easiest (and most elegant, I think) way to do it is with a counter and
> rule delayed:
> list={1,0,1,0,0,1}
> kk=0; newlist={1,0,1,0,0,1} /.1:>++k
> 
> However, the answer I get from this operation is completely
> odd:{10.,0,10.,0,0,10.}:>++k.  I closed my session and re-started my
> computer, but I keep getting the same stuff.  I don't understand what is
> happening. By the way, this problem didn't appear in M3.0.
> 
> Can somebody help me?
> 
> Francisco Gutierrez

-- 
Roland Franzius

  +++ exactly <<n>> lines of this message have value <<FALSE>>
+++


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