/*backtest
start: 2021-05-08 00:00:00
end: 2022-05-07 23:59:00
period: 4h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=5
indicator('Gann High Low', overlay=true)
HPeriod = input(13, 'HIGH Period')
LPeriod = input(21, 'LOW Period')
iff_1 = close < nz(ta.sma(low, LPeriod))[1] ? -1 : 0