The "JustROCR3" strategy is a trading strategy implemented in Python using the freqtrade library. Here is a short description of what the strategy does:
The strategy is designed to backtest trading decisions based on the Rate of Change Ratio (ROCR) indicator. The populate_indicators function calculates the ROCR indicator for the given dataframe using a period of 499.
The populate_buy_trend function sets the 'buy' column of the dataframe to 1 if the ROCR value is greater than 1.10.
The populate_sell_trend function does not contain any specific conditions for selling, as indicated by the empty parentheses.
In summary, this strategy generates buy signals when the ROCR value exceeds 1.10 and does not provide explicit sell signals based on the given code.