移動平均クロスオーバー、相対力指数、出来高価格トレンド、エングルフィングパターン戦略

/*backtest
start: 2023-07-23 00:00:00
end: 2024-07-28 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy("Combined Strategy with Custom Signals and Reversal Patterns", overlay=true)

// Extract data
dataClose = close
dataVolume = volume
dataHigh = high
dataLow = low

// Calculate Volume-Price Relation
volume_price_trend = dataVolume / dataClose

// Calculate Stochastic RSI
stoch_rsi = ta.stoch(dataClose, dataClose, dataClose, 14)

// Calculate EMA
ema_12 = ta.ema(dataClose, 8)
ema_26 = ta.ema(dataClose, 20)

// Bullish Divergence
bullish_divergence = ((ta.lowest(dataLow, 6) < ta.lowest(dataLow, 7)) and (volume_price_trend > ta.lowest(volume_price_trend, 6)))

// Bearish Divergence
bearish_divergence = ((ta.highest(dataHigh, 6) > ta.highest(dataHigh, 7)) and (volume_price_trend < ta.highest(volume_price_trend, 6)))

// Check for buy signals
buy_signal = (bullish_divergence or ((ema_12 > ema_26) and (ema_12[1] <= ema_26[1]))) // Previous crossover point

// Check for sell signals
sell_signal = (bearish_divergence or ((ema_12 < ema_26) and (ema_12[1] >= ema_26[1]))) // Previous crossover point

// Plot custom signals
plotshape(buy_signal, style=shape.triangleup, location=location.belowbar, color=color.green, size=size.small, title="Buy Signal")
plotshape(sell_signal, style=shape.triangledown, location=location.abovebar, color=color.red, size=size.small, title="Sell Signal")

// Optional: Add alerts for buy and sell signals
alertcondition(buy_signal, title="Buy Signal Alert", message="Buy signal detected!")
alertcondition(sell_signal, title="Sell Signal Alert", message="Sell signal detected!")

// Define patterns for Reversal Candlestick Patterns
isBullishEngulfing() =>
    bullishEngulfing = close > open and close[1] < open[1] and close > open[1] and open < close[1]
    bullishEngulfing

isBearishEngulfing() =>
    bearishEngulfing = close < open and close[1] > open[1] and close < open[1] and open > close[1]
    bearishEngulfing

// Calculate patterns
bullishEngulfing = isBullishEngulfing()
bearishEngulfing = isBearishEngulfing()

// Plot reversal signals
plotshape(bullishEngulfing, title="Bullish Engulfing", location=location.belowbar, color=color.green, style=shape.labelup, text="Bull Eng")
plotshape(bearishEngulfing, title="Bearish Engulfing", location=location.abovebar, color=color.red, style=shape.labeldown, text="Bear Eng")

// Variables to count occurrences of engulfing patterns
var int bullishEngulfingCount = 0
var int bearishEngulfingCount = 0

// Strategy logic for combined signals and patterns
if (buy_signal)
    strategy.entry("Long", strategy.long)
if (sell_signal)
    strategy.entry("Short", strategy.short)

// Logic to increment the engulfing pattern counts
if (bullishEngulfing)
    bullishEngulfingCount += 1
else if (not bullishEngulfing)
    bullishEngulfingCount := 0

if (bearishEngulfing)
    bearishEngulfingCount += 1
else if (not bearishEngulfing)
    bearishEngulfingCount := 0

// Exit conditions based on engulfing patterns
if (bearishEngulfing and strategy.position_size > 0)
    strategy.close("Long")
if (bullishEngulfing and strategy.position_size < 0)
    strategy.close("Short")

// Exit conditions for the second occurrence of engulfing patterns for taking profit
if (bullishEngulfingCount == 2 and strategy.position_size < 0)
    strategy.close("Short")
if (bearishEngulfingCount == 2 and strategy.position_size > 0)
    strategy.close("Long")