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MathGroup Archive 2005

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Re: Select from list

  • To: mathgroup at smc.vnet.net
  • Subject: [mg61067] Re: [mg61045] Select from list
  • From: Pratik Desai <pdesai1 at umbc.edu>
  • Date: Sun, 9 Oct 2005 01:35:27 -0400 (EDT)
  • References: <200510080649.CAA20981@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Steven Taracevicz wrote:

>hi:
>
>I read a text file that gives me a list.
>nLevel[8, 10] = Import["output8_10.txt", "List"]
>
>{-10,-9,-7,-3,1,3,3,17}
>
>I have no problems calculating mean, variance etc. with the list.
>
>When I use:
>
>Select[nLevel[8,10], #<0]
>  
>
You forgot to add an ampersand in your functional criteria

Select[nLevel[8,10], #<0&]

This will work

>yields
>
>{}
>
>despite negative elements.
>
>I cannot figure out why.
>
>Thanks,
>
>  
>

Hope this helps

Pratik  .

-- 
Pratik Desai
Graduate Student
UMBC
Department of Mechanical Engineering
Phone: 410 455 8134



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