$ cd <workspace> $ git clone --recursive https://github.com/dmlc/xgboost $ cd xgboost; make -j4 $ cd python-package; sudo python setup.py install import xgboost as xgb from sklearn.model_selection import GridSearchCV from sklearn.datasets import load_boston from sklearn.metrics import mean_squared_error # データ読み込み boston = load_boston() X_train, X_test = boston.data[:400], boston.data[400:] y_train