当前位置: 首页>>代码示例>>Python>>正文


Python CoordinateEncoder._bitForCoordinate方法代码示例

本文整理汇总了Python中nupic.encoders.coordinate.CoordinateEncoder._bitForCoordinate方法的典型用法代码示例。如果您正苦于以下问题:Python CoordinateEncoder._bitForCoordinate方法的具体用法?Python CoordinateEncoder._bitForCoordinate怎么用?Python CoordinateEncoder._bitForCoordinate使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在nupic.encoders.coordinate.CoordinateEncoder的用法示例。


在下文中一共展示了CoordinateEncoder._bitForCoordinate方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: CoordinateEncoderTest

# 需要导入模块: from nupic.encoders.coordinate import CoordinateEncoder [as 别名]
# 或者: from nupic.encoders.coordinate.CoordinateEncoder import _bitForCoordinate [as 别名]
class CoordinateEncoderTest(unittest.TestCase):
  """Unit tests for CoordinateEncoder class"""

  def setUp(self):
    self.encoder = CoordinateEncoder(name="coordinate", n=33, w=3)


  def testInvalidW(self):
    # Even
    args = {"name": "coordinate",
            "n": 45,
            "w": 4}
    self.assertRaises(ValueError, CoordinateEncoder, **args)

    # 0
    args = {"name": "coordinate",
            "n": 45,
            "w": 0}
    self.assertRaises(ValueError, CoordinateEncoder, **args)

    # Negative
    args = {"name": "coordinate",
            "n": 45,
            "w": -2}
    self.assertRaises(ValueError, CoordinateEncoder, **args)


  def testInvalidN(self):
    # Too small
    args = {"name": "coordinate",
            "n": 11,
            "w": 3}
    self.assertRaises(ValueError, CoordinateEncoder, **args)


  def testHashCoordinate(self):
    h1 = self.encoder._hashCoordinate(np.array([0]))
    self.assertEqual(h1, 7415141576215061722)
    h2 = self.encoder._hashCoordinate(np.array([0, 1]))
    self.assertEqual(h2, 6909411824118942936)


  def testOrderForCoordinate(self):
    h1 = self.encoder._orderForCoordinate(np.array([2, 5, 10]))
    h2 = self.encoder._orderForCoordinate(np.array([2, 5, 11]))
    h3 = self.encoder._orderForCoordinate(np.array([2497477, -923478]))

    self.assertTrue(0 <= h1 and h1 < 1)
    self.assertTrue(0 <= h2 and h2 < 1)
    self.assertTrue(0 <= h3 and h3 < 1)

    self.assertTrue(h1 != h2)
    self.assertTrue(h2 != h3)


  def testBitForCoordinate(self):
    n = 1000
    b1 = self.encoder._bitForCoordinate(np.array([2, 5, 10]), n)
    b2 = self.encoder._bitForCoordinate(np.array([2, 5, 11]), n)
    b3 = self.encoder._bitForCoordinate(np.array([2497477, -923478]), n)

    self.assertTrue(0 <= b1 and b1 < n)
    self.assertTrue(0 <= b2 and b2 < n)
    self.assertTrue(0 <= b3 and b3 < n)

    self.assertTrue(b1 != b2)
    self.assertTrue(b2 != b3)

    # Small n
    n = 2
    b4 = self.encoder._bitForCoordinate(np.array([5, 10]), n)

    self.assertTrue(0 <= b4 < n)


  @patch.object(CoordinateEncoder, "_orderForCoordinate")
  def testTopWCoordinates(self, mockOrderForCoordinate):
    # Mock orderForCoordinate
    mockFn = lambda coordinate: np.sum(coordinate) / 5.0
    mockOrderForCoordinate.side_effect = mockFn

    coordinates = np.array([[1], [2], [3], [4], [5]])
    top = self.encoder._topWCoordinates(coordinates, 2).tolist()

    self.assertEqual(len(top), 2)
    self.assertIn([5], top)
    self.assertIn([4], top)


  def testNeighbors1D(self):
    coordinate = np.array([100])
    radius = 5
    neighbors = self.encoder._neighbors(coordinate, radius).tolist()

    self.assertEqual(len(neighbors), 11)
    self.assertIn([95], neighbors)
    self.assertIn([100], neighbors)
    self.assertIn([105], neighbors)


#.........这里部分代码省略.........
开发者ID:mewbak,项目名称:nupic,代码行数:103,代码来源:coordinate_test.py


注:本文中的nupic.encoders.coordinate.CoordinateEncoder._bitForCoordinate方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。