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MathGroup Archive 2006

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Re: Remove Indeterminate elements

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64296] Re: [mg64280] Remove Indeterminate elements
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Fri, 10 Feb 2006 02:13:32 -0500 (EST)
  • Reply-to: hanlonr at cox.net
  • Sender: owner-wri-mathgroup at wolfram.com

x={{1,2},{Indeterminate,3.},{3.,4},
      {2,Indeterminate},{5,6.},
      {Indeterminate,Indeterminate},{7.,8.}};

Cases[x, {_?NumericQ,_?NumericQ}]

{{1, 2}, {3., 4}, {5, 6.}, {7., 8.}}

Other methods:

%==Select[x, FreeQ[#,Indeterminate]&]==
  DeleteCases[x,_?(!FreeQ[#,Indeterminate]&)]==
  DeleteCases[x,_?(MemberQ[#,Indeterminate]&)]

True


Bob Hanlon

> 
> From: "Baris Erbas" <berbas at anadolu.edu.tr>
To: mathgroup at smc.vnet.net
> Subject: [mg64296] [mg64280] Remove Indeterminate elements
> 
> 
> Dear All,
> 
> I have been trying to remove some elements of a list which should be quite
> straightforward. The list is as follows:
> 
> {{x1,y1},{x2,y2},.{xi,yi},{Indeterminate,Indeterminate},.{xn,yn}}. All the
> components are real numbers apart from some Indeterminate expressions. 
I
> want the list without the Indeterminate terms. I have been trying to use
> Delete with If command but cannot succeed.
> 
> Can anyone help please?
> 
> Thanks
> 
> 


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