Re: [jgrapht-developers] dumping adjacency and laplacian matrices

[Charles F. <cf...@us...>]

>   Such a work is a very good news.

Good. Glad to hear that someone else will appreciate it. :-)

> You mentioned that matrix representations could in
> turn be
> analysed and manipulated by external matrix software.
> 
> Matrix Toolkits for Java (MTJ)
> http://rs.cipr.uib.no/mtj/ seems to be a candidate to
> be used to complement JGraphT.

Excelent. I mentioned it in the documentation, and will evaluate it
myself for my own graph matrix analysis.

> In this project a text file format is already used :
> it's the matrix Market text file formats 
> http://math.nist.gov/MatrixMarket/formats.html#MMformat.
> 
> I think it would be a good idea to read/write matrices
> in the same format.

It looks like they actually use the Coordinate Text File (one of
multiple Matrix Market text file formats). The current implementation
already uses a file format that is the same, except that it is missing
the header line. I'll work on allowing MatrixExporter to be configured
to support this format.

Charles

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