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/*backtest start: 2022-04-09 00:00:00 end: 2022-05-08 23:59:00 period: 15m basePeriod: 5m exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ // This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/ // © meer2019 //@version=4 study(title="PSAR x", overlay=true) start = input(0.02) increment = input(0.02) maximum = input(0.2) c=close psar = sar(start, increment, maximum) cp = psar len = input(100, minval=1),off= 0,dev= input(1.9, "Deviation") lreg = linreg(cp, len, off), lreg_x =linreg(cp, len, off+1) b = bar_index, s = lreg - lreg_x,intr = lreg - b*s dS = 0.0 for i=0 to len-1 dS:= dS + pow(cp[i]-(s*(b-i)+intr), 2) de = sqrt(dS/(len)) up = (-de*dev) + psar down= (de*dev) + psar up_t = 0.0 up_t := c[1] > up_t[1] ? max(up, up_t[1]) : up down_t = 0.0 down_t := c[1] < down_t[1] ? min(down, down_t[1]) : down trend = 0 trend := c > down_t[1] ? 1: c < up_t[1] ? -1 : nz(trend[1], 1) // r_line = trend ==1 ? up_t : down_t plot(r_line) buy=crossover( c, r_line) sell=crossunder(c, r_line) if buy strategy.entry("Enter Long", strategy.long) else if sell strategy.entry("Enter Short", strategy.short)