Piercing Pattern

Piercing Pattern is a bullish reversal pattern where the second candle opens below the first’s low but closes more than halfway into the first candle’s body.

Method

tm.ta.cdlpiercing(source_open, source_high, source_low, source_close)

Inputs

Parameter	Argument type	Description	Default Value
source_open	pd.Series	Open prices series	-
source_high	pd.Series	High prices series	-
source_low	pd.Series	Low prices series	-
source_close	pd.Series	Close prices series	-

Outputs

Output	Type
cdlpiercing	np.ndarray

Example usage

strategy.py

import tradomate as tm

@tm.strategy()
def my_strategy(config: tm.TradomateConfig, data: tm.TradomateData):

    # Trying out Piercing Pattern
    cdlpiercing = tm.ta.cdlpiercing(data.open, data.high, data.low, data.close)

    # Get the last value and print
    last_value = cdlpiercing.iloc[-1]
    tm.log(f"Last value of Piercing Pattern is {last_value}")

    # Plot the values of cdlpiercing
    tm.plot(cdlpiercing, title="Piercing Pattern", overlay=False)