পরিমাণগত চলমান গড়ের উপর ভিত্তি করে ট্রেন্ড ট্র্যাকিং কৌশল

/*backtest
start: 2023-08-18 00:00:00
end: 2023-09-17 00:00:00
period: 2h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=4
strategy("EVWMA 6HR", overlay=false, precision=2, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=100, commission_type=strategy.commission.percent, commission_value=0.075)
// Credit to QuantNomad for the main idea behind this code
/////////////// Time Frame ///////////////
_1 = input(false,  "════════ Test Period ═══════")
testStartYear = input(2017, "Backtest Start Year") 
testStartMonth = input(1, "Backtest Start Month")
testStartDay = input(1, "Backtest Start Day")
testPeriodStart = timestamp(testStartYear,testStartMonth,testStartDay, 0, 0)

testStopYear = input(2019, "Backtest Stop Year")
testStopMonth = input(12, "Backtest Stop Month")
testStopDay = input(31, "Backtest Stop Day")
testPeriodStop = timestamp(testStopYear,testStopMonth,testStopDay, 0, 0)

testPeriod() => true

///////////// EVWMA /////////////
_2 = input(false,  "════════ EVMA ═══════")

fast_sum_length = input(5, title = "Fast Sum Length",  type = input.integer)
slow_sum_length = input(11, title = "Slow Sum Length",  type = input.integer)

fast_vol_period = sum(volume, fast_sum_length)
slow_vol_period = sum(volume, slow_sum_length)

fast_evwma = 0.0
fast_evwma := ((fast_vol_period - volume) * nz(fast_evwma[1], close) + volume * close) / (fast_vol_period)
slow_evwma = 0.0
slow_evwma := ((slow_vol_period - volume) * nz(slow_evwma[1], close) + volume * close) / (slow_vol_period)

diff = fast_evwma - slow_evwma

///////////////  Strategy  /////////////// 
long = fast_evwma > slow_evwma 
short = fast_evwma < slow_evwma 

last_long = 0.0
last_short = 0.0
last_long := long ? time : nz(last_long[1])
last_short := short ? time : nz(last_short[1])

long_signal = crossover(last_long, last_short)
short_signal = crossover(last_short, last_long)

last_open_long_signal = 0.0
last_open_short_signal = 0.0
last_open_long_signal := long_signal ? open : nz(last_open_long_signal[1])
last_open_short_signal := short_signal ? open : nz(last_open_short_signal[1])

last_long_signal = 0.0
last_short_signal = 0.0
last_long_signal := long_signal ? time : nz(last_long_signal[1])
last_short_signal := short_signal ? time : nz(last_short_signal[1])

in_long_signal = last_long_signal > last_short_signal
in_short_signal = last_short_signal > last_long_signal

last_high = 0.0
last_low = 0.0
last_high := not in_long_signal ? na : in_long_signal and (na(last_high[1]) or high > nz(last_high[1])) ? high : nz(last_high[1])
last_low := not in_short_signal ? na : in_short_signal and (na(last_low[1]) or low < nz(last_low[1])) ? low : nz(last_low[1])

since_longEntry = barssince(last_open_long_signal != last_open_long_signal[1]) 
since_shortEntry = barssince(last_open_short_signal != last_open_short_signal[1]) 

/////////////// Dynamic ATR Stop Losses ///////////////
_4 = input(false,  "════════ Stop Loss ═══════")
SL_type = input("Fixed", options=["Fixed", "ATR Derived"], title="Stop Loss Type")
sl_inp = input(9.0, title='Fixed Stop Loss %') / 100
atrLkb = input(20, minval=1, title='ATR Stop Period')
atrMult = input(1.5, step=0.25, title='ATR Stop Multiplier') 
atr1 = atr(atrLkb)

longStop1 = 0.0
longStop1 :=  short_signal ? na : long_signal ? close - (atr1 * atrMult) : longStop1[1]
shortStop1 = 0.0
shortStop1 := long_signal ? na : short_signal ? close + (atr1 * atrMult) : shortStop1[1]

slLong = in_long_signal ? strategy.position_avg_price * (1 - sl_inp) : na
slShort = strategy.position_avg_price * (1 + sl_inp)
long_sl = in_long_signal ? slLong : na
short_sl = in_short_signal ? slShort : na

_5 = input(false,  "══════ Longs or Shorts ═════")
useLongs = input(true, title="Use Longs")
useShorts = input(true, title="Use Shorts")

/////////////// Execution ///////////////
if testPeriod()
    if useLongs
        strategy.entry("L", strategy.long, when=long)
        strategy.exit("L SL", "L", stop = SL_type == "Fixed" ? long_sl : longStop1, when=since_longEntry > -1)
    if useShorts
        strategy.exit("S SL", "S", stop = SL_type == "Fixed" ? short_sl : shortStop1, when=since_shortEntry > -1)
        strategy.entry("S", strategy.short, when=short)
    if not useShorts
        strategy.close("L", when=short)
    if not useLongs
        strategy.close("S", when=long)

/////////////// Plotting /////////////// 
bgcolor(long_signal ? color.lime : short_signal ? color.red : na, transp=30)
p1 = plot(diff, title = "Delta", color = long ? color.lime : short ? color.red : na, transp=0)
p2 = plot(0, color = color.white)
fill(p1, p2, color = long ? color.lime : short ? color.red : na, transp=60)