Re: Parts of a list
- To: mathgroup at smc.vnet.net
- Subject: [mg15498] Re: Parts of a list
- From: "Dale Horton" <daleh>
- Date: Mon, 18 Jan 1999 04:22:45 -0500
- Organization: Wolfram Research, Inc.
- References: <77jkve$304@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Use DeleteCases.
In[1]:=
DeleteCases[{{1,0},{2.5, .5},{3,0},{0,2}},{_,0}]
Out[1]=
{{2.5,0.5},{0,2}}
-Dale
Hossein Kazemi wrote in message <77jkve$304 at smc.vnet.net>...
>I have a list (matrix) that looks like this
>
>x={{1,0},{2.5, .5},{3,0},{0,2}}
>
>Now I want to eliminate those vectors that have zero for the second
>case. That is, I want to get
>
>{{2.5, .5},{0,2}}.
>
>Is there a quick way of doing this?
>I tried to apply Select to this but could not get it to work.
>
>Thanks for your help.
>
>Hossein Kazemi
>UMass
>kazemi at som.umass.edu
>
>
>