FIX/TST fix bug variable name for pure test
@@ -334,7 +334,7 @@ def test_pure_set():
for name, TreeRegressor in REG_TREES.items():
reg = TreeRegressor(random_state=0)
reg.fit(X, y)
- assert_almost_equal(clf.predict(X), y,
+ assert_almost_equal(reg.predict(X), y,
err_msg="Failed with {0}".format(name))
