How do I use Select[list,condition]?
- To: mathgroup at smc.vnet.net
- Subject: [mg4524] How do I use Select[list,condition]?
- From: welter at texoma.com (Jason Welter)
- Date: Wed, 7 Aug 1996 04:17:34 -0400
- Organization: Internet Texoma, Inc.
- Sender: owner-wri-mathgroup at wolfram.com
I have a list that looks like:
data = {{1,1,a,4,5,6},{2,1,a,2,3,4},{3,1,a,7,8,9},
{1,2,b,4,5,6},{2,2,b,2,3,4},{3,2,b,7,8,9},
{1,3,c,4,5,6},{2,3,c,2,3,4},{3,3,c,7,8,9}}
and I want to pick out the lists that have a 2 as the second element
of the list. I tried something like:
data1 = Select[data,data[[#,2]]==2];
but this doesn't work. How do I do it?
==== [MESSAGE SEPARATOR] ====