Sparse NMF software in MATLAB

related to the results in the paper 'Sparse Non-negative Matrix Factorizations via Alternating Non-negativity-constrained Least Squares for Microarray Data Analysis'
by H. Kim, and H. Park, Bioinformatics, 2007, to appear.

• Sparse Non-negative matrix factorization: main sparse nmf code,
• Non-negativity constraint least squares with multiple right hand sides by M. H. Van Benthem and M. R. Keenan of Sandia National Laboratories matlab code - needed in the main sparse nmf code above,

• Test microarray data for the sparse nmf test data