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MathGroup Archive 2006

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Re: Count Function

  • To: mathgroup at
  • Subject: [mg65534] Re: [mg65501] Count Function
  • From: Gregory Lypny <gregory.lypny at>
  • Date: Thu, 6 Apr 2006 06:52:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Thanks David,

And thanks to Paul Erickson, David Annetts, Jaccard Florian, and  
Yehuda, all of whom kindly responded.  It's syntax, syntax, syntax,  
and gaining an appreciation of distinctions such as that pointed out  
by Paul Erickson that some function use criteria while others use  
patterns.  It takes time.


On Wed, Apr 5, 2006, at 11:45 AM, David Park wrote:

> Greg,
> What about...
> Count[X[[All,14]], x_/;x > -9.]

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