Updated readme
Updated documentation
normalize features from 0-1
Merge branch 'master' of http://github.com/altonzheng/datascience into vincent/normalize_features
add repeater column and make sure trainer works
Merge pull request #1 from altonzheng/vincent/normalize_features

Vincent/normalize features
pretty print for easier comparisons in trainer.py
Code to reduce full 22GB dataset
add feature total amount spent
Merge branch 'master' of http://github.com/altonzheng/datascience
features category and brand
Merge branch 'master' of http://github.com/altonzheng/datascience into vincent/skl