Изменения

# Запуск поиска по сетке.

classifier = linear_model.SGDClassifier(random_state = 0, tol=1e-3)

grid_cv = model_selection.GridSearchCV(classifier, parameters_grid, scoring = 'accuracy', cv = cv)

grid_cv.fit(train_data, test_data)

Out:

GridSearchCV(cv=StratifiedShuffleSplit(n_splits=10, random_state=0, test_size=0.2, train_size=None),

pre_dispatch='2*n_jobs', refit=True, return_train_score=False,

scoring='accuracy', verbose=0)

=== Sklearn Grid search: важные атрибуты ===