adjust weight
fix ntreelimit
quick lint
fix cxx98
remove using std from cpp
move custom obj build in into booster
chg fobj back to obj, to keep parameter name unchanged
Update DESCRIPTION
Update DESCRIPTION
Update xgboost.Rnw
chg
Merge branch 'master' of github.com:tqchen/xgboost
make some changes to cv
chg
Update xgboost.py
move python example
Merge branch 'master' of ssh://github.com/tqchen/xgboost
push python examples in
ok
fix doc