Update import of make_classification() and make_regression() functions (#162)

* Update import of `make_classification()`

* Update test_dataset.py

* Update test_dual_cd.py

* Update test_sgd.py

Author: StrikerRUS

examples/trace.py

@@ -9,7 +9,6 @@
 from scipy.linalg import svd
 
 from sklearn.datasets import fetch_20newsgroups_vectorized
-from sklearn.datasets.samples_generator import make_classification
 from sklearn.feature_selection import SelectKBest, chi2
 
 from lightning.classification import FistaClassifier

lightning/impl/tests/test_dataset.py

@@ -7,7 +7,7 @@
 from sklearn.utils.testing import assert_equal
 from six.moves import xrange
 
-from sklearn.datasets.samples_generator import make_classification
+from sklearn.datasets import make_classification
 from sklearn.utils import check_random_state
 
 from lightning.impl.dataset_fast import ContiguousDataset

lightning/impl/tests/test_dual_cd.py

@@ -2,7 +2,7 @@
 import scipy.sparse as sp
 
 from sklearn.metrics.pairwise import linear_kernel
-from sklearn.datasets.samples_generator import make_regression
+from sklearn.datasets import make_regression
 from six.moves import xrange
 
 from sklearn.utils.testing import assert_equal

lightning/impl/tests/test_sgd.py

@@ -6,7 +6,7 @@
 from sklearn.utils.testing import assert_greater
 from sklearn.utils.testing import assert_equal
 
-from sklearn.datasets.samples_generator import make_regression
+from sklearn.datasets import make_regression
 
 from lightning.impl.datasets.samples_generator import make_classification
 from lightning.impl.datasets.samples_generator import make_nn_regression