code for basic implementation of neural networks module
Created when I was trying to understand Neural Networks based on the write up in http://www.philbrierley.com/code.html
It was 'perfected' through multiple iterations of 'email conversations' with Phil.
At this point it's still basic, but it works beautifully on the 7 data sets in the the 'data' dir.
I recommend running it in iPython (e.g., spyder in Anaconda Analytics), then the graphs that show convergence as the program runs.