Re: Parts of a list
- To: mathgroup at smc.vnet.net
- Subject: [mg15473] Re: Parts of a list
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Mon, 18 Jan 1999 04:22:13 -0500
- Organization: Universitaet Leipzig
- References: <77jkve$304@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Hossein,
x /. {_,0} :> Sequence[]
will do what you want.
Hope that helps
Jens
Hossein Kazemi wrote:
>
> 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