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RE : [mg96586] Select All Lists Where Any Element

• To: mathgroup at smc.vnet.net
• Subject: [mg96624] RE : [mg96586] Select All Lists Where Any Element
• From: "Jaccard Florian" <Florian.Jaccard at he-arc.ch>
• Date: Tue, 17 Feb 2009 06:28:22 -0500 (EST)
• References: <200902162140.QAA16030@smc.vnet.net>

X = {{1, 2, 3}, {8, NA, 20}, {-7, 9, NA}};

Select[X, MemberQ[#1, NA] & ]

{{8, NA, 20}, {-7, 9, NA}}


Regards,

F.Jaccard

________________________________

De: Gregory Lypny [mailto:gregory.lypny at videotron.ca]
Date: lun. 16.02.2009 22:40
=C0: mathgroup at smc.vnet.net
Objet : [mg96586] Select All Lists Where Any Element is a Given Value



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
              

• References:
  • Select All Lists Where Any Element is a Given Value
    • From: Gregory Lypny <gregory.lypny@videotron.ca>