গতিশীল মূল্য চ্যানেল ব্রেকআউট কৌশল

/*backtest
start: 2022-12-06 00:00:00
end: 2023-12-12 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//Noro

//@version=4
strategy(title = "Noro's RiskChannel Strategy", shorttitle = "RiskChannel str", overlay = true, default_qty_type = strategy.percent_of_equity, initial_capital = 100, default_qty_value = 100, pyramiding = 0, commission_value = 0.1)

//Settings
needlong  = input(true, defval = true, title = "Long")
needshort = input(true, defval = true, title = "Short")
risklong  = input(2.0, minval = 0.0, maxval = 99.9, title = "Risk size for long, %")
riskshort = input(2.0, minval = 0.0, maxval = 99.9, title = "Risk size for short, %")
stoptype  = input(defval = "Center", options = ["Channel", "Center"], title = "Stop-loss type")
lotsize   = input(100, defval = 100, minval = 1, maxval = 10000, title = "Lot, %")
pclen     = input(50, minval = 1, title = "Price Channel Length")
showll    = input(true, defval = true, title = "Show lines")
showof    = input(true, defval = true, title = "Show offset")
showdd    = input(true, defval = true, title = "Show label (drawdown)")
showbg    = input(false, defval = false, title = "Show background")
fromyear  = input(1900, defval = 1900, minval = 1900, maxval = 2100, title = "From Year")
toyear    = input(2100, defval = 2100, minval = 1900, maxval = 2100, title = "To Year")
frommonth = input(01, defval = 01, minval = 01, maxval = 12, title = "From Month")
tomonth   = input(12, defval = 12, minval = 01, maxval = 12, title = "To Month")
fromday   = input(01, defval = 01, minval = 01, maxval = 31, title = "From day")
today     = input(31, defval = 31, minval = 01, maxval = 31, title = "To day")

//Price Channel
h = highest(high, pclen)
l = lowest(low, pclen)
center = (h + l) / 2

//Stop-loss
needstop = stoptype == "Center" or needlong == false or needshort == false
sl = center

//Lines
pccol = showll ? color.black : na
slcol = showll and stoptype == "Center" ? color.red : na
offset = showof ? 1 : 0
plot(h, offset = offset, color = pccol, title = "Channel High")
plot(center, offset = offset, color = slcol, title = "Cannel Center")
plot(l, offset = offset, color = pccol, title = "Channel Low")

//Background
size = strategy.position_size
bgcol = showbg == false ? na : size > 0 ? color.lime : size < 0 ? color.red : na
bgcolor(bgcol, transp = 70)

//Var
loss = 0.0
maxloss = 0.0
equity = 0.0
truetime = time > timestamp(fromyear, frommonth, fromday, 00, 00) and time < timestamp(toyear, tomonth, today, 23, 59)

//Lot size
risksizelong = -1 * risklong
risklonga = stoptype == "Center" ? ((center / h) - 1) * 100 : ((l / h) - 1) * 100
coeflong = abs(risksizelong / risklonga)
lotlong = (strategy.equity / close) * coeflong
risksizeshort = -1 * riskshort
riskshorta = stoptype == "Center" ? ((center / l) - 1) * 100 : ((h / l) - 1) * 100
coefshort = abs(risksizeshort / riskshorta)
lotshort = (strategy.equity / close) * coefshort

//Trading
if h > 0
    strategy.entry("Long", strategy.long, lotlong, stop = h, when = strategy.position_size <= 0 and needlong and truetime)
    strategy.entry("Short", strategy.short, lotshort, stop = l, when = strategy.position_size >= 0 and needshort and truetime)
sl := sl != 0 ? sl : size > 0 ? l : size < 0 ? h : na
if size > 0 and needstop
    strategy.exit("Stop Long", "Long", stop = sl)
if size < 0 and needstop
    strategy.exit("Stop Short", "Short", stop = sl)
if time > timestamp(toyear, tomonth, today, 23, 59)
    strategy.close_all()
    strategy.cancel("Long")
    strategy.cancel("Short")
    
if showdd

    //Drawdown
    max = 0.0
    max := max(strategy.equity, nz(max[1]))
    dd = (strategy.equity / max - 1) * 100
    min = 100.0
    min := min(dd, nz(min[1]))
    
    //Max loss size
    equity := strategy.position_size == 0 ? strategy.equity : equity[1]
    loss := equity < equity[1] ? ((equity / equity[1]) - 1) * 100 : 0
    maxloss := min(nz(maxloss[1]), loss)
    
    //Label
    min := round(min * 100) / 100
    maxloss := round(maxloss * 100) / 100
    labeltext = "Drawdown: " + tostring(min) + "%" + "\nMax.loss " + tostring(maxloss) + "%"
    var label la = na
    label.delete(la)
    tc = min > -100 ? color.white : color.red
    osx = timenow + round(change(time)*10)
    osy = highest(100)
    // la := label.new(x = osx, y = osy, text = labeltext, xloc = xloc.bar_time, yloc = yloc.price, color = color.black, style = label.style_labelup, textcolor = tc)