複数の指標によるトレンド取引システムとモメンタム分析戦略を組み合わせた

/*backtest
start: 2019-12-23 08:00:00
end: 2024-12-10 08:00:00
period: 1d
basePeriod: 1d
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy("RSI and MACD by Karthik", overlay=true)

// Define periods for SMAs
sma50Period = 50
sma200Period = 200

// Calculate SMAs
sma50 = ta.sma(close, sma50Period)
sma200 = ta.sma(close, sma200Period)

// Plot SMAs on the main chart
plot(sma50, color=color.blue, title="50 Period SMA", linewidth=2)
plot(sma200, color=color.red, title="200 Period SMA", linewidth=2)

// Define and calculate parameters for Stochastic RSI
stochRSIPeriod = 14
rsi = ta.rsi(close, stochRSIPeriod)
stochRSIK = ta.stoch(rsi, rsi, stochRSIPeriod, 3)
stochRSID = ta.sma(stochRSIK, 3)

// Define and calculate parameters for MACD
macdShort = 12
macdLong = 26
macdSignal = 9
[macdLine, signalLine, macdHist] = ta.macd(close, macdShort, macdLong, macdSignal)

// Plot Stochastic RSI in a separate pane
hline(80, "Overbought", color=color.red, linewidth=1)
hline(20, "Oversold", color=color.green, linewidth=1)
plot(stochRSIK, color=color.blue, title="Stochastic RSI %K")
plot(stochRSID, color=color.red, title="Stochastic RSI %D")

// Plot MACD in a separate pane
hline(0, "Zero Line", color=color.gray, linewidth=1)
plot(macdHist, color=color.blue, title="MACD Histogram", style=plot.style_histogram)
plot(macdLine, color=color.red, title="MACD Line")
plot(signalLine, color=color.green, title="Signal Line")

// Conditions for buy and sell signals
isAbove200SMA = close > sma200
isStochRSIKAbove = stochRSIK > stochRSID
macdLineAbove = macdLine > signalLine
buySignal = isAbove200SMA and isStochRSIKAbove and macdLineAbove

isBelow200SMA = close < sma200
isStochRSIKBelow = stochRSIK < stochRSID
macdLineBelow = macdLine < signalLine
sellSignal = isBelow200SMA and isStochRSIKBelow and macdLineBelow

// Track the last signal with explicit type declaration
var string lastSignal = na

// Create series for plotting conditions
var bool plotBuySignal = na
var bool plotSellSignal = na
var bool plotExitBuySignal = na
var bool plotExitSellSignal = na

// Update plotting conditions based on signal and last signal
if buySignal and (lastSignal != "buy")
    plotBuySignal := true
    lastSignal := "buy"
else
    plotBuySignal := na

if sellSignal and (lastSignal != "sell")
    plotSellSignal := true
    lastSignal := "sell"
else
    plotSellSignal := na

// Update exit conditions based on SMA50
if lastSignal == "buy" and close < sma50
    plotExitBuySignal := true
    lastSignal := na // Clear lastSignal after exit
else
    plotExitBuySignal := na

if lastSignal == "sell" and close > sma50
    plotExitSellSignal := true
    lastSignal := na // Clear lastSignal after exit
else
    plotExitSellSignal := na

// Plot buy and sell signals on the main chart
plotshape(series=plotBuySignal, location=location.belowbar, color=color.green, style=shape.circle, size=size.small, title="Buy Signal")
plotshape(series=plotSellSignal, location=location.abovebar, color=color.red, style=shape.circle, size=size.small, title="Sell Signal")

// Plot exit signals for buy and sell
plotshape(series=plotExitBuySignal, location=location.belowbar, color=color.yellow, style=shape.xcross, size=size.small, title="Exit Buy Signal")
plotshape(series=plotExitSellSignal, location=location.abovebar, color=color.yellow, style=shape.xcross, size=size.small, title="Exit Sell Signal")


// Strategy to Backtest

long = buySignal
short = sellSignal

// Exit Conditions
exitBuy = close < sma50
exitSell = close > sma50


if (buySignal)
    strategy.entry("Long", strategy.long, 1.0)
if (sellSignal)
    strategy.entry("Short", strategy.short, 1.0)

strategy.close("Long", when=exitBuy)
strategy.close("Short", when=exitSell)