সুইং ট্রেডিং ইন্ডিকেটর কৌশল

/*backtest
start: 2022-12-05 00:00:00
end: 2023-12-11 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/
// © maxencetajet

//@version=5
strategy("MACD Strategy", overlay=true, initial_capital=1000, slippage=25)

src = input(title="Source", defval=close)
target_stop_ratio = input.float(title='Risk/Reward', defval=2, minval=0.5, maxval=100)
risk = input.float(2, title="Risk per Trade %")

riskt = risk / 100 + 1

useDateFilter = input.bool(true, title="Filter Date Range of Backtest",
     group="Backtest Time Period")
backtestStartDate = input(timestamp("5 June 2022"), 
     title="Start Date", group="Backtest Time Period",
     tooltip="This start date is in the time zone of the exchange " + 
     "where the chart's instrument trades. It doesn't use the time " + 
     "zone of the chart or of your computer.")
backtestEndDate = input(timestamp("5 July 2022"),
     title="End Date", group="Backtest Time Period",
     tooltip="This end date is in the time zone of the exchange " + 
     "where the chart's instrument trades. It doesn't use the time " + 
     "zone of the chart or of your computer.")

inTradeWindow =  true
emaV = input.int(200, title="Length", group="EMA")
swingHighV = input.int(7, title="Swing High", group="number of past candles")
swingLowV = input.int(7, title="Swing Low", group="number of past candles")

ema = ta.ema(src, emaV)

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

fast_ma = sma_source == "SMA" ? ta.sma(src, fast_length) : ta.ema(src, fast_length)
slow_ma = sma_source == "SMA" ? ta.sma(src, slow_length) : ta.ema(src, slow_length)
macd = fast_ma - slow_ma
signal = sma_signal == "SMA" ? ta.sma(macd, signal_length) : ta.ema(macd, signal_length)
hist = macd - signal

longcondition = close > ema and ta.crossover(macd, signal) and macd < 0
shortcondition = close < ema and ta.crossunder(macd, signal) and macd > 0

float risk_long = na
float risk_short = na
float stopLoss = na
float takeProfit = na
float entry_price = na

risk_long := risk_long[1]
risk_short := risk_short[1]

swingHigh = ta.highest(high, swingHighV)
swingLow = ta.lowest(low, swingLowV)

lotB = (strategy.equity*riskt-strategy.equity)/(close - swingLow)
lotS = (strategy.equity*riskt-strategy.equity)/(swingHigh - close)

if strategy.position_size == 0 and longcondition and inTradeWindow
    risk_long := (close - swingLow) / close
    strategy.entry("long", strategy.long, qty=lotB)
    
if strategy.position_size == 0 and shortcondition and inTradeWindow
    risk_short := (swingHigh - close) / close  
    strategy.entry("short", strategy.short, qty=lotS)

if strategy.position_size > 0

    stopLoss := strategy.position_avg_price * (1 - risk_long)
    takeProfit := strategy.position_avg_price * (1 + target_stop_ratio * risk_long)
    entry_price := strategy.position_avg_price
    strategy.exit("long exit", "long", stop = stopLoss, limit = takeProfit)
    
if strategy.position_size < 0

    stopLoss := strategy.position_avg_price * (1 + risk_short)
    takeProfit := strategy.position_avg_price * (1 - target_stop_ratio * risk_short)
    entry_price := strategy.position_avg_price
    strategy.exit("short exit", "short", stop = stopLoss, limit = takeProfit)
    
plot(ema, color=color.white, linewidth=2, title="EMA")
p_ep = plot(entry_price, color=color.new(color.white, 0), linewidth=2, style=plot.style_linebr, title='entry price')
p_sl = plot(stopLoss, color=color.new(color.red, 0), linewidth=2, style=plot.style_linebr, title='stopLoss')
p_tp = plot(takeProfit, color=color.new(color.green, 0), linewidth=2, style=plot.style_linebr, title='takeProfit')
fill(p_sl, p_ep, color.new(color.red, transp=85))
fill(p_tp, p_ep, color.new(color.green, transp=85))