MACD মোমেন্টাম ইন্ডিকেটর ব্যাকটেস্টিং কৌশল

/*backtest
start: 2023-08-24 00:00:00
end: 2023-09-23 00:00:00
period: 1h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
//based on Range Strat - MACD/RSI 
// strategy("MACD/RSI - edited", 
//      overlay=true,
//      default_qty_type=strategy.percent_of_equity,
//      default_qty_value=10, precision=2, initial_capital=100000,
//      pyramiding=2,
//      commission_value=0.05)

//Backtest date range
StartDate = input(timestamp("13 Jun 2022"), title="Start Date")
EndDate = input(timestamp("13 Jun 2024"), title="Start Date")
inDateRange = true

// RSI Input Settings
rsisrc = input(title="RSI Source", defval=close, group="RSI Settings")
length = input(title="Length", defval=14, group="RSI Settings" )
overSold = input(title="Over Sold Threshold", defval=30, group="RSI Settings" )
overBought = input(title="Over Bought Threshold", defval=70, group="RSI Settings" )
rsi_lookback = input(title="RSI cross lookback period", defval=7, group="RSI Settings")

// Calculating RSI
vrsi = ta.rsi(rsisrc, length)
co = ta.crossover(vrsi, overSold)
cu = ta.crossunder(vrsi, overBought)

// Function looking for a happened condition during lookback period
f_somethingHappened(_cond, _lookback) =>
    bool _crossed = false
    for i = 1 to _lookback
        if _cond[i]
            _crossed := true
    _crossed


coCheck = f_somethingHappened(co, rsi_lookback)
cuCheck = f_somethingHappened(cu, rsi_lookback)

// MACD Input Settings
macdsrc = input(title="MACD Source", defval=close, group="MACD Settings")
fast_length = input(title="Fast Length", defval=12, group="MACD Settings")
slow_length = input(title="Slow Length", defval=26, group="MACD Settings")
signal_length = input.int(title="Signal Smoothing",  minval = 1, maxval = 50, defval = 9, group="MACD Settings")
sma_source = input.string(title="Oscillator MA Type",  defval="EMA", options=["SMA", "EMA"], group="MACD Settings")
sma_signal = input.string(title="Signal Line MA Type", defval="EMA", options=["SMA", "EMA"], group="MACD Settings")


// Calculating MACD
fast_ma = sma_source == "SMA" ? ta.sma(macdsrc, fast_length) : ta.ema(macdsrc, fast_length)
slow_ma = sma_source == "SMA" ? ta.sma(macdsrc, slow_length) : ta.ema(macdsrc, slow_length)
macd = fast_ma - slow_ma
signal = sma_signal == "SMA" ? ta.sma(macd, signal_length) : ta.ema(macd, signal_length)
delta = macd - signal

MACDcrossover = ta.crossover(delta, 0)
MACDcrossunder = ta.crossunder(delta, 0)

// Stop Loss Input Settings
longLossPerc = input(title="Long Stop Loss (%)", defval=15, group="Stop Loss Settings") * 0.01
shortLossPerc = input(title="Short Stop Loss (%)", defval=15, group="Stop Loss Settings") * 0.01

// Calculating Stop Loss
longStopPrice  = strategy.position_avg_price * (1 - longLossPerc)
shortStopPrice = strategy.position_avg_price * (1 + shortLossPerc)



// Strategy Entry
if (not na(vrsi))
	if (inDateRange and MACDcrossover and coCheck)
		strategy.entry("LONG", strategy.long, comment="LONG")
	if (inDateRange and MACDcrossunder and cuCheck)
		strategy.entry("SHORT", strategy.short, comment="SHORT")

// Submit exit orders based on calculated stop loss price
if (strategy.position_size > 0)
    strategy.exit(id="LONG STOP", stop=longStopPrice)
if (strategy.position_size < 0)
    strategy.exit(id="SHORT STOP", stop=shortStopPrice)