def add_volume_ta(df: pd.DataFrame, high: str, low: str, close: str, volume: str,
fillna: bool = False, colprefix: str = "") -> pd.DataFrame:
"""Add volume technical analysis features to dataframe.
Args:
df (pandas.core.frame.DataFrame): Dataframe base.
high (str): Name of 'high' column.
low (str): Name of 'low' column.
close (str): Name of 'close' column.
volume (str): Name of 'volume' column.
fillna(bool): if True, fill nan values.
colprefix(str): Prefix column names inserted
Returns:
pandas.core.frame.DataFrame: Dataframe with new features.
"""
# Accumulation Distribution Index
df[f'{colprefix}volume_adi'] = AccDistIndexIndicator(
high=df[high], low=df[low], close=df[close], volume=df[volume], fillna=fillna).acc_dist_index()
# On Balance Volume
df[f'{colprefix}volume_obv'] = OnBalanceVolumeIndicator(
close=df[close], volume=df[volume], fillna=fillna).on_balance_volume()
# Chaikin Money Flow
df[f'{colprefix}volume_cmf'] = ChaikinMoneyFlowIndicator(
high=df[high], low=df[low], close=df[close], volume=df[volume], fillna=fillna).chaikin_money_flow()
# Force Index
df[f'{colprefix}volume_fi'] = ForceIndexIndicator(
close=df[close], volume=df[volume], n=13, fillna=fillna).force_index()
# Money Flow Indicator
df[f'{colprefix}volume_mfi'] = MFIIndicator(
high=df[high], low=df[low], close=df[close], volume=df[volume], n=14, fillna=fillna).money_flow_index()
# Ease of Movement
indicator = EaseOfMovementIndicator(high=df[high], low=df[low], volume=df[volume], n=14, fillna=fillna)
df[f'{colprefix}volume_em'] = indicator.ease_of_movement()
df[f'{colprefix}volume_sma_em'] = indicator.sma_ease_of_movement()
# Volume Price Trend
df[f'{colprefix}volume_vpt'] = VolumePriceTrendIndicator(
close=df[close], volume=df[volume], fillna=fillna).volume_price_trend()
# Negative Volume Index
df[f'{colprefix}volume_nvi'] = NegativeVolumeIndexIndicator(
close=df[close], volume=df[volume], fillna=fillna).negative_volume_index()
# Volume Weighted Average Price
df[f'{colprefix}volume_vwap'] = VolumeWeightedAveragePrice(
high=df[high], low=df[low], close=df[close], volume=df[volume], n=14, fillna=fillna
).volume_weighted_average_price()
return df
def test_sma_ease_of_movement2(self):
target = 'SMA_EMV'
result = EaseOfMovementIndicator(high=self._df['High'],
low=self._df['Low'],
volume=self._df['Volume'],
n=14,
fillna=False).sma_ease_of_movement()
pd.testing.assert_series_equal(self._df[target].tail(),
result.tail(),
check_names=False)
def setUpClass(cls):
cls._df = pd.read_csv(cls._filename, sep=',')
cls._params = dict(high=cls._df['High'],
low=cls._df['Low'],
volume=cls._df['Volume'],
n=14,
fillna=False)
cls._indicator = EaseOfMovementIndicator(**cls._params)
def setUpClass(cls):
cls._df = pd.read_csv(cls._filename, sep=",")
cls._params = dict(
high=cls._df["High"],
low=cls._df["Low"],
volume=cls._df["Volume"],
window=14,
fillna=False,
)
cls._indicator = EaseOfMovementIndicator(**cls._params)