Re: reading matrix-market format files in octave

[Bill Denney]

On Fri, 1 Dec 2006, Ozzy Lash wrote:

> On 12/1/06, david moloney <address@hidden> wrote:
> > I tried including the mmread and mmwrite files downloaded from 
> > http://math.nist.gov/MatrixMarket/mmio/matlab/mmiomatlab.html in my 
> > Octave search path.  These .m files however generate errors and do not 
> > appear to be compabible with octave syntax.  Is there some other way of 
> > reading .mtx files in Octave?
>
> Which version of Octave are you using?  mminfo and mmread seem to work 
> fine with the latest octave-2.9.9 and the associated octave-forge 
> packages for debian unstable.  I didn't try mmwrite.  I only tried it 
> against the 1138_bus.mtx matrix.  Here is a snippet of the results:
>
> octave-2.9.9:2> A=mmread("1138_bus.mtx")
> A =
>
> Compressed Column Sparse (rows = 1138, cols = 1138, nnz = 2596)

Sparse support is significantly better in 2.9.9 than it was prior to about 
2.9.5, and so the current 2.9 series is likely required.

Bill

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