Strategi Crossover Purata Bergerak Berganda adalah strategi trend berikut yang tipikal. Ia menggunakan dua garis EMA dengan tempoh yang berbeza dan pergi lama apabila EMA tempoh yang lebih pendek melintasi EMA tempoh yang lebih lama dan pergi pendek apabila persimpangan bertentangan berlaku untuk menangkap pembalikan trend.
Indikator teras strategi ini adalah dua garis EMA, satu adalah 30 tempoh dan yang lain adalah 60 tempoh.
emaLen1 = emaFuncOne(close, lenMA1)
emaLen2 = emaFuncTwo(close, lenMA2)
Isyarat dagangan dihasilkan daripada persimpangan dua garis EMA:
currentState = if emaLen2 > emaLen1
0
else
1
previousState = if emaLastLen2 > emaLastLen1
0
else
1
convergence = if currentState != previousState
1
else
0
Apabila EMA tempoh yang lebih pendek melintasi EMA tempoh yang lebih lama, currentState tidak sama dengan previousState, isyarat silang dicetuskan, pergi panjang. Apabila EMA tempoh yang lebih pendek melintasi di bawah EMA tempoh yang lebih lama, currentState tidak sama dengan previousState, isyarat silang dicetuskan, pergi pendek.
Kelebihan strategi ini ialah:
Terdapat juga beberapa risiko dengan strategi ini:
Pengoptimuman boleh dilakukan dengan menyesuaikan tempoh EMA atau menambah penapis.
Strategi ini boleh dioptimumkan dari aspek berikut:
Dual Moving Average Crossover adalah strategi yang mudah dan praktikal mengikuti trend sistem secara keseluruhan. Ia mudah, mudah dilaksanakan dan boleh mengesan trend secara automatik. Tetapi terdapat beberapa risiko seperti ketinggalan dan isyarat palsu. Dengan penyesuaian parameter dan penambahan penapis, ia boleh ditingkatkan lagi untuk menjadi salah satu strategi dagangan algoritma asas.
/*backtest start: 2024-01-10 00:00:00 end: 2024-01-11 00:00:00 period: 1m basePeriod: 1m exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ //@version=2 strategy("ParkerMAStrat", overlay=true) lenMA1=input(title="Length 1", defval=30) lenMA2=input(title="Length 2", defval=60) x = 0 checkLines(current, last) => if current > last x = 1 else x = 0 x //plot ema based on len1 emaFuncOne(src, time_period) => alpha = 2 / (time_period + 1) // we have defined the alpha function above ema = 0.0 // this is the initial declaration of ema, since we dont know the first ema we will declare it to 0.0 [as a decimal] ema := alpha * src + (1 - alpha) * nz(ema[1]) // this returns the computed ema at the current time // notice the use of : (colon) symbol before =, it symbolises, that we are changing the value of ema, // since the ema was previously declared to 0 // this is called mutable variale declaration in pine script ema // return ema from the function emaLen1 = emaFuncOne(close, lenMA1) plot(emaLen1, color=green, transp=0, linewidth=2) // now we plot the _10_period_ema //plot ema based on len2 emaFuncTwo(src, time_period) => alpha = 2 / (time_period + 1) // we have defined the alpha function above ema = 0.0 // this is the initial declaration of ema, since we dont know the first ema we will declare it to 0.0 [as a decimal] ema := alpha * src + (1 - alpha) * nz(ema[1]) // this returns the computed ema at the current time // notice the use of : (colon) symbol before =, it symbolises, that we are changing the value of ema, // since the ema was previously declared to 0 // this is called mutable variale declaration in pine script ema // return ema from the function //plot ema based on len2 emaFuncOneLast(src, time_period) => alpha = 2 / (time_period + 1) // we have defined the alpha function above ema = 0.0 // this is the initial declaration of ema, since we dont know the first ema we will declare it to 0.0 [as a decimal] ema := alpha * src + (1 - alpha) * nz(ema[0]) // this returns the computed ema at the current time // notice the use of : (colon) symbol before =, it symbolises, that we are changing the value of ema, // since the ema was previously declared to 0 // this is called mutable variale declaration in pine script ema // return ema from the function //plot ema based on len2 emaFuncTwoLast(src, time_period) => alpha = 2 / (time_period + 1) // we have defined the alpha function above ema = 0.0 // this is the initial declaration of ema, since we dont know the first ema we will declare it to 0.0 [as a decimal] ema := alpha * src + (1 - alpha) * nz(ema[0]) // this returns the computed ema at the current time // notice the use of : (colon) symbol before =, it symbolises, that we are changing the value of ema, // since the ema was previously declared to 0 // this is called mutable variale declaration in pine script ema // return ema from the function emaLastLen1 = emaFuncOneLast(close, lenMA1) emaLastLen2 = emaFuncTwoLast(close, lenMA2) emaLen2 = emaFuncTwo(close, lenMA2) plot(emaLen2, color=red, transp=30, linewidth=2) // now we plot the _10_period_ema //now we compare the two and when green crosses red we buy/sell (line1 vs line2) previousState = if emaLastLen2 > emaLastLen1 0 else 1 currentState = if emaLen2 > emaLen1 0 else 1 convergence = if currentState != previousState 1 else 0 lineCheck = if convergence == 1 checkLines(currentState, previousState) if lineCheck == 1 strategy.entry("Long", strategy.long) else strategy.entry("Short", strategy.short)