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MathGroup Archive 2006

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Count Function

  • To: mathgroup at
  • Subject: [mg65501] Count Function
  • From: Gregory Lypny <gregory.lypny at>
  • Date: Wed, 5 Apr 2006 06:55:53 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

The syntax will be the death of me.

Count[X[[All,14]], -9.] will tally how many elements in column 14 of  
matrix X are equal to -9, but I can't for the life of me figure out  
how to get how many are greater than -9.  Any hint would be most  


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