Python negative_volume_index示例

示例#1

 def test_nvi_invalid_data(self):
     self.close_data.append(1)
     with self.assertRaises(Exception) as cm:
         volume_index.negative_volume_index(self.close_data, self.volume)
     expected = (
         "Error: mismatched data lengths, check to ensure that all input data is the same length and valid"
     )
     self.assertEqual(str(cm.exception), expected)

示例#2

文件： pyti_volume_index.py 项目： w1r2p1/KryptoBot

 def next_calculation(self, candle):
     if self.get_datawindow() is not None:
         self.value['positive_volume_index'] = indicator.positive_volume_index(
             self.get_close(),
             self.get_volume()
         )[-1]
         self.value['negative_volume_index'] = indicator.negative_volume_index(
             self.get_close(),
             self.get_volume()
         )[-1]

示例#3

 def test_nvi(self):
     nvi = volume_index.negative_volume_index(self.close_data, self.volume)
     np.testing.assert_array_equal(nvi, self.nvi_expected)