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Re: List Manipulation

• To: mathgroup@smc.vnet.net
• Subject: [mg10515] Re: [mg10471] List Manipulation
• From: "C. Woll" <carlw@u.washington.edu>
• Date: Tue, 20 Jan 1998 02:23:03 -0500

Hi Paul,

A simple way to do this problem is to use Partition and First. If

list = {{n1},{n2},...{2n}}

then

First/@Partition[list,2]

should do the trick

Carl Woll
Dept of Physics
U of Washington

On Fri, 16 Jan 1998 Paul.Hanson@colorado.edu wrote:

> Hola!
>   Hope you're all doing well.  If I have a list of n lists, and want to
> get rid of all the even ones how would I go about doing  this?  That
> is, {{n1},{n2},.....{2n}} converted to {{n1},{n3}...{2n-1}}. I tried
> using the various procedures in Wolfram's book, but nothing seems to
> work (ie, Delete, Take, etc.).  Thanks for the help.
> 
> Paul Hanson
> 
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