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Re: Extraction of positive values from list of both +/- values

  • To: mathgroup at smc.vnet.net
  • Subject: [mg34683] Re: Extraction of positive values from list of both +/- values
  • From: ullrich at math.okstate.edu (David C. Ullrich)
  • Date: Fri, 31 May 2002 04:30:14 -0400 (EDT)
  • References: <ad4je4$jlu$1@smc.vnet.net>
  • Reply-to: ullrich at math.okstate.edu
  • Sender: owner-wri-mathgroup at wolfram.com

On Thu, 30 May 2002 07:13:08 +0000 (UTC), divinesaam at aol.com (O.A.
Linares, M.D., Ph.D.) wrote:

>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.

lst=Select[lstvals, # > 0 &]

>Thanks,
>
>Oscar
>


David C. Ullrich


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