2nd commit
3rd try
classifier
classifier skel
Merge pull request #1 from zyue1105/master

Merge it
halfway classifier

in case i lost my file on my computer...
classifier done
classifier works fine; check it out!

only problem is that the available data are small
linear kernel works best on our dataset.
numpy and scikit
matplotlib
scipy
add classifier and more test data
feature selection
add classifer and more training data