Rate of change Percentage

ROCP calculates the percentage change in price between two periods. It is calulated as (price-prevPrice)/prevPrice.

Method

tm.ta.rocp(source, timeperiod)

Inputs

Parameter	Argument type	Description	Default Value
source	pd.Series	Input data series	-
timeperiod	int	Number of periods for the indicator	10

Outputs

Output	Type
rocp	np.ndarray

Example usage

strategy.py

import tradomate as tm

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

    # Trying out Rate of change Percentage: (price-prevPrice)/prevPrice
    rocp = tm.ta.rocp(data.close, timeperiod=10)

    # Get the last value and print
    last_value = rocp.iloc[-1]
    tm.log(f"Last value of Rate of change Percentage: (price-prevPrice)/prevPrice is {last_value}")

    # Plot the values of rocp
    tm.plot(rocp, title="Rate of change Percentage: (price-prevPrice)/prevPrice", overlay=False)