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Re: Select All Lists Where Any Element is a Given Value

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96641] Re: Select All Lists Where Any Element is a Given Value
  • From: Peter Breitfeld <phbrf at t-online.de>
  • Date: Wed, 18 Feb 2009 04:22:55 -0500 (EST)
  • References: <gncmgo$fkq$1@smc.vnet.net>

Gregory Lypny wrote:

> Hello everyone,
>
> Suppose I have the list
>
> 	X = {{1, 2, 3}, {8, NA, 20}, {-7, 9, NA}},
>
> where NA is a string, although it need not be.  How can I use Select  
> to pull out all lists in X where NA appears in any element?  In this  
> example, I want to pull out the second and third list.
>
> 		Regards,
>
> 			Gregory
> 		
>

Try:

Select[X, MemberQ[#, "NA"] &]

Out={{8, "NA", 20}, {-7, 9, "NA"}}

-- 
_________________________________________________________________
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de


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