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Topic: Deleting entire row and/or column
Replies: 10   Last Post: Apr 5, 2009 6:34 AM

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Posts: 124
Registered: 9/23/08
Re: Deleting entire row and/or column
Posted: Apr 2, 2009 5:47 AM
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On Apr 1, 12:50 pm, KFUPM <> wrote:
> Dear all
> I have large matrices having entire rows and/or columns of zeros and I
> want to delete those zero rows and columns. My question, what is the
> best (most compact) command to use in Mathematica. Please note that
> the value of zero is the real zero i.e 0.0000 not just 0.
> Regards,

matKill0[m_?MatrixQ] :=
Part[m, Pick[Range@Length[m], Equal[0, ##] & @@@ m, False],
Pick[Range@Length@First[m], MapThread[Equal[0, ##] &, m], False]];

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