For use like Strategy and backtest,
1. Change the word "study" for "strategy"
2. Add this at the end
strategy.entry( id = "Long", long = true, when = longCondition )
strategy.close( id = "Long", when = shortCondition )
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.