ダブル・ムービング・平均クロスオーバー戦略は,典型的なトレンドフォロー戦略である.異なる期間の2つのEMA線を使用し,短い期間のEMAが長い期間のEMAをクロスすると長くなって,逆のクロスがトレンド逆転を記録するときに短くなってしまう.
この戦略の主な指標は,EMA線が2つで,1つは30期,もう1つは60期である.この2つのEMA線はコード内のカスタム関数で計算される.
emaLen1 = emaFuncOne(close, lenMA1)
emaLen2 = emaFuncTwo(close, lenMA2)
取引シグナルは,二つのEMA線が交差する時に生成される.
currentState = if emaLen2 > emaLen1
0
else
1
previousState = if emaLastLen2 > emaLastLen1
0
else
1
convergence = if currentState != previousState
1
else
0
短い期間の EMA が長期間の EMA を横切る時,currentState は前期状態に等しくありません.クロスオーバー信号が発信され,ロングになります. 短い期間のEMAが長い期間のEMAを下回ると,currentStateは前のStateに等しくなく,クロスオーバー信号が発信され,ショートになります.
この戦略の利点は次のとおりです.
この戦略にはいくつかのリスクもあります:
EMA期間を調整したりフィルターを追加したりすることで最適化できます.
この戦略は,次の側面から最適化できます.
ダブル・ムービング・アベア・クロスオーバー戦略は,全体的にトレンドフォローするシンプルで実践的なシステムです. シンプルで,実装が簡単で,トレンドを自動的に追跡できます. しかし,遅れや誤ったシグナルなどのリスクがあります. パラメータ調節とフィルターを追加することで,さらに改善され,基本的なアルゴリズム取引戦略の1つになります.
/*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)