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