Re: Extraction of positive values from list of both +/- values
- To: mathgroup at smc.vnet.net
- Subject: [mg34646] Re: Extraction of positive values from list of both +/- values
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Fri, 31 May 2002 04:26:22 -0400 (EDT)
- References: <ad4je4$jlu$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Oscar,
lstvals={700, 600, 500, 400, 300, 200, 100, -50, 100, -200, -300};
Select[lstvals, Positive]
{700,600,500,400,300,200,100,100}
--
Allan
---------------------
Allan Hayes
Mathematica Training and Consulting
Leicester UK
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565
"O.A. Linares, M.D., Ph.D." <divinesaam at aol.com> wrote in message
news:ad4je4$jlu$1 at smc.vnet.net...
> Dear Colleagues,
>
> I have a list of values:
>
> lstvals={700, 600, 500, 400, 300, 200, 100, -50, 100, -200, -300}
>
> I want to create a list that contains only the positive values. I know I
can use
>
> lst=Take[lstvals, 7]
>
> The problem is, the size of the vectors vary. Help appreciated.
>
> Thanks,
>
> Oscar
>