def testGowerDistance(self):
metric_instance = metric_wrapper(type_metric.GOWER, [0.0], None)
self.assertEqual(0.0, metric_instance([0.0], [0.0]))
metric_instance = metric_wrapper(type_metric.GOWER, [1.0, 1.0], None)
self.assertEqual(1.0, metric_instance([0.0, 0.0], [1.0, 1.0]))
metric_instance = metric_wrapper(type_metric.GOWER, [0.5, 0.5], None)
self.assertEqual(1.0, metric_instance([0.75, 0.75], [0.25, 0.25]))
metric_instance = metric_wrapper(type_metric.GOWER, [0.0, 0.0], None)
self.assertEqual(0.0, metric_instance([-1.0, -1.0], [-1.0, -1.0]))
metric_instance = metric_wrapper(type_metric.GOWER, [1.0, 1.0], None)
self.assertEqual(1.0, metric_instance([-2.0, -2.0], [-3.0, -3.0]))
def testCanberraMetric(self):
metric_instance = metric_wrapper(type_metric.CANBERRA, [], None)
self.assertEqual(0.0, metric_instance([0.0, 0.0], [0.0, 0.0]))
self.assertEqual(2.0, metric_instance([0.0, 0.0], [1.0, 1.0]))
self.assertEqual(1.0, metric_instance([0.75, 0.75], [0.25, 0.25]))
self.assertEqual(0.0, metric_instance([-1.0, -1.0], [-1.0, -1.0]))
self.assertEqual(0.4, metric_instance([-2.0, -2.0], [-3.0, -3.0]))
def testChiSquareMetric(self):
metric_instance = metric_wrapper(type_metric.CHI_SQUARE, [], None)
self.assertEqual(0.0, metric_instance([0.0, 0.0], [0.0, 0.0]))
self.assertEqual(2.0, metric_instance([0.0, 0.0], [1.0, 1.0]))
self.assertEqual(0.5, metric_instance([0.75, 0.75], [0.25, 0.25]))
self.assertEqual(0.0, metric_instance([-1.0, -1.0], [-1.0, -1.0]))
self.assertEqual(0.4, metric_instance([-2.0, -2.0], [-3.0, -3.0]))
def testCanberraMetric(self):
metric_instance = metric_wrapper(type_metric.CANBERRA, [], None)
assertion.eq(0.0, metric_instance([0.0, 0.0], [0.0, 0.0]))
assertion.eq(2.0, metric_instance([0.0, 0.0], [1.0, 1.0]))
assertion.eq(1.0, metric_instance([0.75, 0.75], [0.25, 0.25]))
assertion.eq(0.0, metric_instance([-1.0, -1.0], [-1.0, -1.0]))
assertion.eq(0.4, metric_instance([-2.0, -2.0], [-3.0, -3.0]))
def testChiSquareMetric(self):
metric_instance = metric_wrapper(type_metric.CHI_SQUARE, [], None)
assertion.eq(0.0, metric_instance([0.0, 0.0], [0.0, 0.0]))
assertion.eq(2.0, metric_instance([0.0, 0.0], [1.0, 1.0]))
assertion.eq(0.5, metric_instance([0.75, 0.75], [0.25, 0.25]))
assertion.eq(0.0, metric_instance([-1.0, -1.0], [-1.0, -1.0]))
assertion.eq(0.4, metric_instance([-2.0, -2.0], [-3.0, -3.0]))
# TODO: doesn't work for some platforms.
#def testUserDefinedMetric(self):
# user_metric = lambda p1, p2 : p1[0] + p2[0];
# metric_instance = metric_wrapper(type_metric.USER_DEFINED, [], user_metric);
# assertion.eq(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]));
# assertion.eq(4.0, metric_instance([3.0, 2.0], [1.0, 5.0]));
def testMinkowskiMetric(self):
metric_instance = metric_wrapper(type_metric.MINKOWSKI, [2.0], None)
self.assertEqual(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testChebyshevMetric(self):
metric_instance = metric_wrapper(type_metric.CHEBYSHEV, [], None)
self.assertEqual(4.0, metric_instance([1.0, 4.0], [0.0, 0.0]))
def testManhattanMetric(self):
metric_instance = metric_wrapper(type_metric.MANHATTAN, [], None)
self.assertEqual(3.0, metric_instance([1.0, 2.0], [0.0, 0.0]))
def testSquareEuclideanMetric(self):
metric_instance = metric_wrapper(type_metric.EUCLIDEAN_SQUARE, [],
None)
self.assertEqual(4.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testChebyshevMetric(self):
metric_instance = metric_wrapper(type_metric.CHEBYSHEV, [], None)
assertion.eq(4.0, metric_instance([1.0, 4.0], [0.0, 0.0]))
def testMinkowskiMetric(self):
metric_instance = metric_wrapper(type_metric.MINKOWSKI, [2.0], None)
assertion.eq(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testManhattanMetric(self):
metric_instance = metric_wrapper(type_metric.MANHATTAN, [], None)
assertion.eq(3.0, metric_instance([1.0, 2.0], [0.0, 0.0]))
def testSquareEuclideanMetric(self):
metric_instance = metric_wrapper(type_metric.EUCLIDEAN_SQUARE, [], None)
assertion.eq(4.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testEuclideanMetric(self):
metric_instance = metric_wrapper(type_metric.EUCLIDEAN, [], None)
assertion.eq(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testEuclideanMetric(self):
metric_instance = metric_wrapper(type_metric.EUCLIDEAN, [], None)
assertion.eq(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
def testUserDefinedMetric(self):
user_metric = lambda p1, p2: p1[0] + p2[0]
metric_instance = metric_wrapper(type_metric.USER_DEFINED, [],
user_metric)
assertion.eq(2.0, metric_instance([0.0, 0.0], [2.0, 0.0]))
assertion.eq(4.0, metric_instance([3.0, 2.0], [1.0, 5.0]))
