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MathGroup Archive 1996

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Re: How can this MapAt application be done more efficiently

  • To: mathgroup at smc.vnet.net
  • Subject: [mg4208] Re: How can this MapAt application be done more efficiently
  • From: rhall2 at umbc.edu (hall robert)
  • Date: Thu, 13 Jun 1996 23:12:05 -0400
  • Organization: University of Maryland, Baltimore County
  • Sender: owner-wri-mathgroup at wolfram.com

In article <4pis80$iuo at dragonfly.wolfram.com>,
Joel Cannon  <cannon at alpha.centenary.edu> wrote:
>I have written a function to Drop any zero's from a table of numbers.
>Here is an example:
>
>	In[161]:= dropzero[ {{5, 0}, {4, 1}, {3, 2, 0}, {3, 1, 1}} ]
>
>	Out[161]= {{5}, {4, 1}, {3, 2}, {3, 1, 1}}
>
>I would like to learn how to do it more efficiently. In what I am

You may have noticed this function in an unrelated posting today.

In[2]:=
  DeleteCases[{{5, 0}, {4, 1}, {3, 2, 0}, {3, 1, 1}}, 0, {2}]
Out[2]=
  {{5}, {4, 1}, {3, 2}, {3, 1, 1}}

-- 
Bob Hall            | "Know thyself? Absurd direction!
rhall2 at gl.umbc.edu  |  Bubbles bear no introspection."  -Khushhal Khan Khatak

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