Rate of change ratio
ROCR measures the ratio of the current price to the price at a previous period. It is calculated as (price/prevPrice).
Method
tm.ta.rocr(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 |
---|---|
rocr | np.ndarray |
Example usage
import tradomate as tm
@tm.strategy()def my_strategy(config: tm.TradomateConfig, data: tm.TradomateData):
# Trying out Rate of change ratio: (price/prevPrice) rocr = tm.ta.rocr(data.close, timeperiod=10)
# Get the last value and print last_value = rocr.iloc[-1] tm.log(f"Last value of Rate of change ratio: (price/prevPrice) is {last_value}")
# Plot the values of rocr tm.plot(rocr, title="Rate of change ratio: (price/prevPrice)", overlay=False)