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Re: Select All Lists Where Any Element is a Given Value
*To*: mathgroup at smc.vnet.net
*Subject*: [mg96645] Re: [mg96586] Select All Lists Where Any Element is a Given Value
*From*: Richard Hofler <rhofler at bus.ucf.edu>
*Date*: Wed, 18 Feb 2009 04:23:38 -0500 (EST)
*References*: <200902162140.QAA16030@smc.vnet.net>
Hello Gregory,
You'll probably receive many good solutions. Does this do what you want?
In[14]:= mylst={{1,2,3},{8,NA,20},{-7,9,NA},{NA,3,5}};
In[15]:= Cases[mylst,{___,PatternSequence[NA],___}]
Out[15]= {{8,NA,20},{-7,9,NA},{NA,3,5}}
Richard Hofler
________________________________
From: Gregory Lypny [mailto:gregory.lypny at videotron.ca]
Sent: Mon 2/16/2009 4:40 PM
To: mathgroup at smc.vnet.net
Subject: [mg96645] [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
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