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.
//@version=2 strategy("RSI Strategy", overlay=true) length = input( 14 ) overSold = input( 27 ) overBought = input( 73 ) price = close vrsi = rsi(price, length) if (not na(vrsi)) if (crossover(vrsi, overSold)) strategy.entry("RsiLE", strategy.long, qty=10000, comment="RsiLE") if (crossunder(vrsi, overBought)) strategy.entry("RsiSE", strategy.short, qty=10000, comment="RsiSE")