Re: 0-1 sparse representations?

[c.]

On 19 Nov 2011, at 21:49, E R wrote:

> 
> Does Octave has a special representation for a 0-1 matrix where there
> is only one 1 per row, and, if so, how does one go about building it?

I think you are trying to build a permutation matrix? 
Yes, Octave does have a special representation for this:

http://www.gnu.org/software/octave/doc/interpreter/Creating-Permutation-Matrices.html#Creating-Permutation-Matrices

notice that this only works if the matrix you want to build is square
c.