
From:  antonio palestrini 
Subject:  Re: Excluding elements of a matrix 
Date:  Wed, 20 Dec 2006 01:02:47 +0100 
2006/12/19, Joseph Wakeling <joseph.wakeling at webdrake.net>:Thanks to all for useful replies. How feasible would it be to implement a simple syntax for something like this in a future version of Octave, along the lines of, a(\6) [i.e. a excluding element 6] A(:,\[5 7]) [matrix A excluding columns 5 and 7] ... inspired by set notation?
...
If you have to work with this kind of data manipulations the best thing to do, in my opinion, is to write a function like the following for the matrix example (the vector one may be constructed analogously)
function B = del_columns(A,q)
incidentally, if you remember to put row vectors in the function you can use "del_columns" even to delete elements of vectors. I'm lazy I know :) ciao antonio  Prof. Antonio Palestrini DSGSS  University of Teramo, Italy email: address@hidden
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