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MathGroup Archive 2008

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Function pure for Select

  • To: mathgroup at smc.vnet.net
  • Subject: [mg93027] Function pure for Select
  • From: Miguel <misvrne at gmail.com>
  • Date: Fri, 24 Oct 2008 02:29:41 -0400 (EDT)

Hi al,

How can I to write a function pure to extract all the first rows of
collection of data, applied to a list?.

For example,

Select[data,First[#]==30&]

This function extracts all rows which first element is equal to 30.
Well, I want to extend this function to a list of values
{30,45,50,66}.


Thanks


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