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MathGroup Archive 2003

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Re: List Operation ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg40226] Re: List Operation ?
  • From: bobhanlon at aol.com (Bob Hanlon)
  • Date: Wed, 26 Mar 2003 02:44:26 -0500 (EST)
  • References: <b5qct7$blp$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

list1[[All, {1,2,4}]]

list1/.{a_,b_,c_,d_,e_,f_}:>{a,b,d}

Extract[#, {{1},{2},{4}}]& /@ list1

Drop[Take[#, 4],{3}]& /@ list1


Bob Hanlon

In article <b5qct7$blp$1 at smc.vnet.net>, Sunil Jayatilleke
<sunilj at physics.uc.edu> wrote:

<< Subject:	List Operation ?
From:		Sunil Jayatilleke <sunilj at physics.uc.edu>
To: mathgroup at smc.vnet.net
Date:		Tue, 25 Mar 2003 20:07:03 +0000 (UTC)



I have a list as follows

list1 = {{a1,b1,c1,d1,e1,f1},{a2,b2,c2,d2,e2,f2},{............}.............}

Now I want to do the following

list2 ={{a1,b1,d1},{a2,b2,d2}......................}

How can I do that ?
 >><BR><BR>


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