README

Code to run the Non-negative Matrix Factorization algorithm as 
presented in the Lee, Seung 1999 Nature paper.

To run, simply start matlab and run the "main" function in main.m.
The four datasets that you may use are:

	* BLOCKS.mat
	* CARBRUT.mat
	* PFACE.mat
	* RAND.mat

Please see main.m for more information.

To display the results, use display_image.m to display a single 
image.  Use display_network.m to display more than one image (in a 
nice format).

To see how I created the "block" example, look at createblocks.m.
