機械学習 ベースライン検証
#ベースライン検証データ作成x_tr, x_va2, y_tr, y_va2 = train_test_split(x_train, y_train, test_size=0.2, shuffle=True, stratify=y_train, random_state=123)x_tr1, x_va1, y_tr1, y_va1 = train_test_split(x_tr, y_tr, test_size=0.2, shuffle=True, stratify=y_tr