model = xgb.XGBClassifier(base_score=0.05, booster='gbtree', colsample_bylevel=1,
              colsample_bynode=1, colsample_bytree=1, gamma=0,
              learning_rate=0.1, max_delta_step=0, max_depth=4,
              min_child_weight=1, missing=None, n_estimators=50, n_jobs=1,
              nthread=None, objective='binary:logistic', random_state=10,
              reg_alpha=0, reg_lambda=0, scale_pos_weight=5, seed=1337,
              silent=None, subsample=1, verbosity=1)