Re: Parts of a list
- To: mathgroup at smc.vnet.net
- Subject: [mg15463] Re: Parts of a list
- From: Harald Giese <giese at dkrz.de>
- Date: Mon, 18 Jan 1999 04:22:07 -0500
- Organization: Institut fuer Meereskunde, Universitaet Hamburg
- References: <77jkve$304@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
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. > ... Hi Hossein, Use the function "Select", in your case: Select[x, (#[[2]] != 0.)&] Regards, Harald -- Harald Giese Email: giese at dkrz.de Phone: +49 (0)40 4123 5796; Fax: +49 (0)40 5605724 Institut fuer Meereskunde der Universitaet Hamburg (Institute of Oceanography of the University of Hamburg) Troplowitzstrasse 7, D-22529 Hamburg