本文整理匯總了Python中talib.OBV屬性的典型用法代碼示例。如果您正苦於以下問題：Python talib.OBV屬性的具體用法？Python talib.OBV怎麽用？Python talib.OBV使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類talib的用法示例。
在下文中一共展示了talib.OBV屬性的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: obv
# 需要導入模塊: import talib [as 別名]
# 或者: from talib import OBV [as 別名]
def obv(candles: np.ndarray, sequential=False) -> Union[float, np.ndarray]:
"""
OBV - On Balance Volume
:param candles: np.ndarray
:param sequential: bool - default=False
:return: float | np.ndarray
"""
if not sequential and len(candles) > 240:
candles = candles[-240:]
res = talib.OBV(candles[:, 2], candles[:, 5])
if sequential:
return res
else:
return None if np.isnan(res[-1]) else res[-1] 示例2: calculate_obv
# 需要導入模塊: import talib [as 別名]
# 或者: from talib import OBV [as 別名]
def calculate_obv(self, period_name, closing_prices, volumes):
obv = talib.OBV(closing_prices, volumes)
obv_ema = talib.EMA(obv, timeperiod=3)
self.current_indicators[period_name]['obv_ema'] = obv_ema[-1]
self.current_indicators[period_name]['obv'] = obv[-1] 示例3: test_obv
# 需要導入模塊: import talib [as 別名]
# 或者: from talib import OBV [as 別名]
def test_obv():
"""test OBC"""
obv = TA.OBV(ohlc)
talib_obv = talib.OBV(ohlc["close"], ohlc["volume"])
#assert obv.values[-1] == talib_obv[-1]
#assert -149123.0 == -148628.0
pass # close enough 示例4: test_obv
# 需要導入模塊: import talib [as 別名]
# 或者: from talib import OBV [as 別名]
def test_obv(self):
result = pandas_ta.obv(self.close, self.volume_)
self.assertIsInstance(result, Series)
self.assertEqual(result.name, 'OBV')
try:
expected = tal.OBV(self.close, self.volume_)
pdt.assert_series_equal(result, expected, check_names=False)
except AssertionError as ae:
try:
corr = pandas_ta.utils.df_error_analysis(result, expected, col=CORRELATION)
self.assertGreater(corr, CORRELATION_THRESHOLD)
except Exception as ex:
error_analysis(result, CORRELATION, ex) 示例5: OBV
# 需要導入模塊: import talib [as 別名]
# 或者: from talib import OBV [as 別名]
def OBV(data, **kwargs):
_check_talib_presence()
_, _, _, _, pvolume = _extract_ohlc(data)
return talib.OBV(pvolume, **kwargs)
# ---------------------------------------------
# Cycle Indicators
# ---------------------------------------------