Стратегия перекрестного использования двойной EMA - это широко используемая стратегия следования тренду. Она использует две линии EMA с разными периодами и генерирует сигналы покупки, когда более короткая EMA пересекает более длинную EMA, и сигналы продажи, когда происходит обратное, для того, чтобы улавливать изменения тренда.
Основная логика этой стратегии основана на принципах
В частности, эта стратегия использует параметры длины1 и длины2 для установки периодов двух линий EMA. demaVal1 - длины1 периода EMA и demaVal2 - длины2 периода EMA. Они рассчитываются как:
demaVal1 = EMA(close, length1)
demaVal2 = EMA(close, length2)
где EMA() является функцией, которая вычисляет значения EMA. Когда demaVal1 пересекает demaVal2, генерируется сигнал покупки demaCrossover. Когда происходит обратное, генерируется сигнал продажи demaCrossunder. Стратегия отправляет торговые ордера на основе этих двух сигналов.
Преимущества этой стратегии включают:
Существуют также некоторые риски, связанные с этой стратегией:
Исходя из вышеуказанных рисков, следующие аспекты могут быть оптимизированы:
В заключение можно сказать, что стратегия перекрестного использования двойной EMA представляет собой простую, но практичную систему следования трендам.
/*backtest start: 2022-11-29 00:00:00 end: 2023-12-05 00:00:00 period: 1d basePeriod: 1h 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/ // © zeguela //@version=4 strategy(title="ZEGUELA DEMABOT", commission_value=0.063, commission_type=strategy.commission.percent, initial_capital=100, default_qty_value=90, default_qty_type=strategy.percent_of_equity, overlay=true, process_orders_on_close=true) // Step 1. Script settings // Input options srcData = input(title="Source Data", type=input.source, defval=close) // Length settings len1 = input(title="Length DEMA #1", type=input.integer, defval=8, minval=1) len2 = input(title="Length DEMA #2", type=input.integer, defval=24, minval=0) len3 = input(title="Length DEMA #3", type=input.integer, defval=0, minval=0) // Step 2. Calculate indicator values // Function that calculates the DEMA DEMA(series, length) => if (length > 0) emaValue = ema(series, length) 2 * emaValue - ema(emaValue, length) else na // Calculate the DEMA values demaVal1 = DEMA(srcData, len1) demaVal2 = DEMA(srcData, len2) demaVal3 = DEMA(srcData, len3) // Step 3. Determine indicator signals // See if there's a DEMA crossover demaCrossover = if (len2 > 0) and (len3 > 0) crossover(demaVal1, demaVal2) and (demaVal3 > demaVal3[1]) else if (len2 > 0) and (len3 == 0) crossover(demaVal1, demaVal2) else if (len3 > 0) and (len2 == 0) crossover(demaVal1, demaVal3) else crossover(close, demaVal1) // Check if there's a DEMA crossunder demaCrossunder = if (len2 > 0) and (len3 > 0) crossunder(demaVal1, demaVal2) and (demaVal3 < demaVal3[1]) else if (len2 > 0) and (len3 == 0) crossunder(demaVal1, demaVal2) else if (len3 > 0) and (len2 == 0) crossunder(demaVal1, demaVal3) else crossunder(close, demaVal1) // Step 4. Output indicator data // Plot DEMAs on the chart plot(series=demaVal1, color=color.green, linewidth=2, title="DEMA #1") plot(series=demaVal2, color=color.red, linewidth=2, title="DEMA #2") plot(series=demaVal3, color=color.fuchsia, linewidth=2, title="DEMA #3") //TRAILING STOP CODE a = input(title="Usar Trailing Stop?", type=input.bool, defval=false) stopPerlong = input(9.0, title='Stop Loss Long %', type=input.float, group="Stop Loss & Take Profit Settings") / 100 stopPershort = input(6.0, title='Stop Loss Short %', type=input.float, group="Stop Loss & Take Profit Settings") / 100 take1Perlong = input(25.0, title='Take Profit Long % 1', type=input.float, group="Stop Loss & Take Profit Settings") / 100 take1Pershort = input(6.0, title='Take Profit Short % 1', type=input.float, group="Stop Loss & Take Profit Settings") / 100 // Determine stop loss price longStopPrice = strategy.position_avg_price * (1 - stopPerlong) shortStopPrice = strategy.position_avg_price * (1 + stopPershort) longTake1Price = strategy.position_avg_price * (1 + take1Perlong) shortTake1Price = strategy.position_avg_price * (1 - take1Pershort) // Determine trail stop loss prices longStopPriceTrail = 0.0 longStopPriceTrail := if (strategy.position_size > 0) stopValue = close * (1 - stopPerlong) max(stopValue, longStopPriceTrail[1]) else 0 // Determine trailing short price shortStopPriceTrail = 0.0 shortStopPriceTrail := if (strategy.position_size < 0) stopValue = close * (1 + stopPershort) min(stopValue, shortStopPriceTrail[1]) else 999999 //calcular qual stop usar longStop = a ? longStopPriceTrail : longStopPrice shortStop = a ? shortStopPriceTrail : shortStopPrice //calcula o valor do stop e TP pra lançar no alerta longStopEntrada = close * (1 - stopPerlong) shortStopEntrada = close * (1 + stopPershort) longTPEntrada = close * (1 + take1Perlong) shortTPEntrada = close * (1 - take1Pershort) //armazena o preço de entrada e valor do SL e TP price_entryL = 0.0 price_entryL := na(price_entryL) ? na : price_entryL[1] price_entryS = 0.0 price_entryS := na(price_entryS) ? na : price_entryS[1] stopL = 0.0 stopL := na(stopL) ? na : stopL[1] stopS = 0.0 stopS := na(stopS) ? na : stopS[1] takeL = 0.0 takeL := na(takeL) ? na : takeL[1] takeS = 0.0 takeS := na(takeS) ? na : takeS[1] if (demaCrossover) price_entryL := close stopL := close * (1 - stopPerlong) takeL := close * (1 + take1Perlong) if (demaCrossunder) price_entryS := close stopS := close * (1 + stopPershort) takeS := close * (1 - take1Pershort) resultadoL = ((close - price_entryL)/price_entryL) * 100 resultadoLexit = "(SL = 1% e TP = 0,5%)" resultadoS = ((price_entryS - close)/price_entryS) * 100 resultadoSexit = "(SL = 1% e TP = 0,5)%" // Make input options that configure backtest date range _startDate = input(title="Start Date", type=input.integer, defval=1, minval=1, maxval=31, group="BackTest Period") _startMonth = input(title="Start Month", type=input.integer, defval=1, minval=1, maxval=12, group="BackTest Period") _startYear = input(title="Start Year", type=input.integer, defval=2018, minval=1800, maxval=2100, group="BackTest Period") _endDate = input(title="End Date", type=input.integer, defval=31, minval=1, maxval=31, group="BackTest Period") _endMonth = input(title="End Month", type=input.integer, defval=12, minval=1, maxval=12, group="BackTest Period") _endYear = input(title="End Year", type=input.integer, defval=2031, minval=1800, maxval=2100, group="BackTest Period") // Look if the close time of the current bar // falls inside the date range _inDateRange = (time >= timestamp(syminfo.timezone, _startYear, _startMonth, _startDate, 0, 0)) and (time < timestamp(syminfo.timezone, _endYear, _endMonth, _endDate, 0, 0)) //Alert configuration _alertMessageOpenLong="OpenLong" _alertMessageCloseLong="CloseLong" _alertmessageExitLong="ExitLong - TP/SL" _alertMessageOpenShort="OpenShort" _alertMessageCloseShort="CloseShort" _alertMessageExitShort="ExitShort - TP/SL" if (_inDateRange) //ENTER SOME SETUP TRADES FOR TSL EXAMPLE if (demaCrossover) strategy.entry("LONG", strategy.long, comment = _alertMessageOpenLong) if (demaCrossunder) strategy.entry("SHORT", strategy.short, comment = _alertMessageOpenShort) //EXIT TRADE @ TSL if strategy.position_size > 0 strategy.exit("TP/SL", "LONG", stop=longStop, limit=longTake1Price, comment=_alertmessageExitLong, alert_message=_alertmessageExitLong) if strategy.position_size < 0 strategy.exit("TP/SL", "SHORT", stop=shortStop, limit=shortTake1Price, comment =_alertMessageExitShort, alert_message=_alertMessageExitShort) //Look & Feel - Plot stop loss and take profit areas p1=plot(strategy.position_avg_price, color=color.blue, style=plot.style_linebr, linewidth=1, title="Preço de entrada") p2=plot(series=strategy.position_size > 0 ? longStop : na, color=color.red, style=plot.style_linebr, linewidth=1, title="Long Stop") p3=plot(series=strategy.position_size > 0 ? longTake1Price : na, color=color.green, style=plot.style_linebr, linewidth=1, title="Long TP") p4=plot(series=strategy.position_size < 0 ? shortStop : na, color=color.red, style=plot.style_linebr, linewidth=1, title="Short Stop") p5=plot(series=strategy.position_size < 0 ? shortTake1Price : na, color=color.green, style=plot.style_linebr, linewidth=1, title="Short TP") fill(p1, p2, color=color.red) fill(p1, p3, color=color.green) fill(p1, p4, color=color.red) fill(p1, p5, color=color.green) // Insert label with value stopLossOnLong = "Stop Loss = " + tostring(longStop) stopLossOnShort = "Stop Loss = " + tostring(shortStop) takeprofitOnLong = "Take Profit = " + tostring(longTake1Price) takeprofitOnShort = "Take Profit = " + tostring(shortTake1Price) precoentrada = "Entrada = " + tostring(strategy.position_avg_price) var label FinalLabelpriceL = na var label FinalLabelpriceS = na var label slFinalLabelL = na var label slFinalLabelS = na var label slFinalLabelTPL = na var label slFinalLabelTPS = na //Draw entry and stop loss lines and labels if strategy.position_size > 0 //write the price above the end of the stoploss line slFinalLabelL := label.new(bar_index, longStop, stopLossOnLong, style=label.style_none, size=size.normal, textcolor=color.red) slFinalLabelTPL := label.new(bar_index, longTake1Price, takeprofitOnLong, style=label.style_none, size=size.normal, textcolor=color.green) FinalLabelpriceL := label.new(bar_index, strategy.position_avg_price, precoentrada, style=label.style_none, size=size.normal, textcolor=color.blue) // Delete previous label when there is a consecutive new high, as there's no line plot in that case. if strategy.position_size > 0[1] label.delete(slFinalLabelL[1]) label.delete(slFinalLabelTPL[1]) label.delete(FinalLabelpriceL[1]) if strategy.position_size < 0 //write the price above the end of the stoploss line slFinalLabelS := label.new(bar_index, shortStop, stopLossOnShort, style=label.style_none, size=size.normal, textcolor=color.red) slFinalLabelTPS := label.new(bar_index, shortTake1Price, takeprofitOnShort, style=label.style_none, size=size.normal, textcolor=color.green) FinalLabelpriceS := label.new(bar_index, strategy.position_avg_price, precoentrada, style=label.style_none, size=size.normal, textcolor=color.blue) // Delete previous label when there is a consecutive new high, as there's no line plot in that case. if strategy.position_size < 0[1] label.delete(slFinalLabelS[1]) label.delete(slFinalLabelTPS[1]) label.delete(FinalLabelpriceS[1]) // Exit open market position when date range ends if (not _inDateRange) strategy.close_all()