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Empty Matrix DLD question
From: |
Andy+Alison Adler |
Subject: |
Empty Matrix DLD question |
Date: |
Thu, 05 Nov 1998 23:04:27 -0500 |
I'd like to return an empty matrix from
an *oct file.
Initially I hoped that when cx==0
X["ridx"]= ridxX.extract( 0, cx-1);
would return an empty matrix.
No luck. x.ridx is a two element column vector.
Next, I tried
if ( cx > 0 ) {
X["ridx"]= ridxX.extract( 0, cx-1);
} else {
ColumnVector nullvec(0);
X["ridx"]= nullvec;
}
But this segfaults octave.
I couldn't find any examples of how to do this
in the source.
Is there an approved way to create empty matrices?
andy,
- Empty Matrix DLD question,
Andy+Alison Adler <=