মুভিং এভারেজ ক্রসওভার ট্রেন্ড অনুসরণ কৌশল

/*backtest
start: 2023-09-07 00:00:00
end: 2023-09-08 09:00:00
period: 10m
basePeriod: 1m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=3
//Converted to strategy by shawnteoh

strategy(title = "MA Emperor insiliconot Strategy" , overlay=true, pyramiding=1, precision=8)
strat_dir_input = input(title="Strategy Direction", defval="long", options=["long", "short", "all"])
strat_dir_value = strat_dir_input == "long" ? strategy.direction.long : strat_dir_input == "short" ? strategy.direction.short : strategy.direction.all
strategy.risk.allow_entry_in(strat_dir_value)

// Testing start dates
testStartYear = input(2020, "Backtest Start Year")
testStartMonth = input(1, "Backtest Start Month")
testStartDay = input(1, "Backtest Start Day")
testPeriodStart = timestamp(testStartYear,testStartMonth,testStartDay,0,0)
//Stop date if you want to use a specific range of dates
testStopYear = input(2030, "Backtest Stop Year")
testStopMonth = input(12, "Backtest Stop Month")
testStopDay = input(30, "Backtest Stop Day")
testPeriodStop = timestamp(testStopYear,testStopMonth,testStopDay,0,0)
// Order size
orderQty = input(1, "Order quantity", type = float)
// Plot indicator
plotInd = input(false, "Plot indicators?", type = bool)

testPeriod() => true

haClose = close
haOpen  = open
haHigh  = high
haLow   = low 

haClose := (open + high + low + close) / 4
haOpen  := (nz(haOpen[1]) + nz(haClose[1])) / 2
haHigh  := max(high, max(haOpen, haClose))
haLow   := min(low , min(haOpen, haClose))

ssrc = close
ha = false

o = ha ? haOpen : open
c = ha ? haClose : close
h = ha ? haHigh : high
l = ha ? haLow : low

ssrc := ssrc == close ? ha ? haClose : c : ssrc
ssrc := ssrc == open ? ha ? haOpen : o : ssrc
ssrc := ssrc == high ? ha ? haHigh : h : ssrc
ssrc := ssrc == low ? ha ? haLow : l : ssrc
ssrc := ssrc == hl2 ? ha ? (haHigh + haLow) / 2 : hl2 : ssrc
ssrc := ssrc == hlc3 ? ha ? (haHigh + haLow + haClose) / 3 : hlc3 : ssrc
ssrc := ssrc == ohlc4 ? ha ? (haHigh + haLow + haClose+ haOpen) / 4 : ohlc4 : ssrc

type = input(defval = "EMA", title = "Type", options = ["Butterworth_2Pole", "DEMA", "EMA", "Gaussian", "Geometric_Mean", "LowPass", "McGuinley", "SMA", "Sine_WMA", "Smoothed_MA", "Super_Smoother",  "Triangular_MA", "Wilders", "Zero_Lag"])

len1=input(8, title ="MA 1")
len2=input(13, title = "MA 2") 
len3=input(21, title = "MA 3")
len4=input(55, title = "MA 4")
len5=input(89, title = "MA 5")
lenrib=input(120, title = "IB")
lenrib2=input(121, title = "2B")
lenrib3=input(200, title = "21b")
lenrib4=input(221, title = "22b")

onOff1  = input(defval=true, title="Enable 1")
onOff2  = input(defval=true, title="Enable 2")
onOff3  = input(defval=true, title="Enable 3")
onOff4  = input(defval=false, title="Enable 4")
onOff5  = input(defval=false, title="Enable 5")
onOff6  = input(defval=false, title="Enable 6")
onOff7  = input(defval=false, title="Enable 7")
onOff8  = input(defval=false, title="Enable x")
onOff9  = input(defval=false, title="Enable x")


gauss_poles = input(3, "*** Gaussian poles ***",  minval = 1, maxval = 14) 
linew = 2
shapes = false

 
variant_supersmoother(src,len) =>
    Pi = 2 * asin(1)
    a1 = exp(-1.414* Pi / len)
    b1 = 2*a1*cos(1.414* Pi / len)
    c2 = b1
    c3 = (-a1)*a1
    c1 = 1 - c2 - c3
    v9 = 0.0
    v9 := c1*(src + nz(src[1])) / 2 + c2*nz(v9[1]) + c3*nz(v9[2])
    v9
    
variant_smoothed(src,len) =>
    v5 = 0.0
    v5 := na(v5[1]) ? sma(src, len) : (v5[1] * (len - 1) + src) / len
    v5

variant_zerolagema(src, len) =>
    price = src
    l = (len - 1) / 2
    d = (price + (price - price[l]))
    z = ema(d, len)
    z
    
variant_doubleema(src,len) =>
    v2 = ema(src, len)
    v6 = 2 * v2 - ema(v2, len)
    v6

variant_WiMA(src, length) =>
    MA_s= nz(src)
    MA_s:=(src + nz(MA_s[1] * (length-1)))/length
    MA_s
    
fact(num)=>
    a = 1
    nn = num <= 1 ? 1 : num
    for i = 1 to nn
        a := a * i
    a
    
getPoles(f, Poles, alfa)=>
    filt = f
    sign = 1
    results = 0 + n//tv series spoofing
    for r = 1 to max(min(Poles, n),1)
	    mult  = fact(Poles) / (fact(Poles - r) * fact(r))
	    matPo = pow(1 - alfa, r)
        prev  = nz(filt[r-1],0)
        sum   =  sign * mult * matPo * prev
        results := results + sum
        sign  := sign * -1
    results := results - n
    results
    
variant_gauss(Price, Lag, Poles)=>
    Pi = 2 * asin(1)
    beta = (1 - cos(2 * Pi / Lag)) / ( pow (sqrt(2), 2.0 / Poles) - 1)
    alfa = -beta + sqrt(beta * beta +  2 * beta)
    pre = nz(Price, 0) * pow(alfa, Poles) 
    filter = pre
    result = n > 0 ?  getPoles(nz(filter[1]), Poles, alfa) : 0
    filter := pre + result

variant_mg(src, len)=>
    mg = 0.0
    mg := na(mg[1]) ? ema(src, len) : mg[1] + (src - mg[1]) / (len * pow(src/mg[1], 4))
    mg
    
variant_sinewma(src, length) =>
    PI = 2 * asin(1)
    sum = 0.0
    weightSum = 0.0
    for i = 0 to length - 1
        weight = sin(i * PI / (length + 1))
        sum := sum + nz(src[i]) * weight
        weightSum := weightSum + weight
    sinewma = sum / weightSum
    sinewma
    
variant_geoMean(price, per)=>
    gmean = pow(price, 1.0/per)
    gx = for i = 1 to per-1
        gmean := gmean * pow(price[i], 1.0/per)
        gmean
    ggx = n > per? gx : price    
    ggx


variant_butt2pole(pr, p1)=>
    Pi = 2 * asin(1)
    DTR = Pi / 180    
    a1 = exp(-sqrt(2) * Pi / p1)
    b1 = 2 * a1 * cos(DTR * (sqrt(2) * 180 / p1))
    cf1 = (1 - b1 + a1 * a1) / 4
    cf2 = b1
    cf3 = -a1 * a1
    butt_filt = pr
    butt_filt := cf1 * (pr + 2 * nz(pr[1]) + nz(pr[2])) + cf2 * nz(butt_filt[1]) + cf3 * nz(butt_filt[2])

variant_lowPass(src, len)=>
    LP = src
    sr = src
    a = 2.0 / (1.0 + len)
    LP := (a - 0.25 * a * a) * sr + 0.5 * a * a * nz(sr[1]) - (a - 0.75 * a * a) * nz(sr[2]) + 2.0 * (1.0 - a) * nz(LP[1]) - (1.0 - a) * (1.0 - a) * nz(LP[2])
    LP


variant_sma(src, len) =>
    sum = 0.0
    for i = 0 to len - 1
        sum := sum + src[i] / len
    sum

variant_trima(src, length) =>
    len = ceil((length + 1) * 0.5)
    trima =  sum(sma(src, len), len)/len
    trima
 
 
    
variant(type, src, len) =>
      type=="EMA"   ? ema(src, len) : 
      type=="LowPass" ? variant_lowPass(src, len) :  
      type=="Linreg"  ? linreg(src, len, 0) : 
      type=="Gaussian"  ? variant_gauss(src, len, gauss_poles) :
      type=="Sine_WMA"  ? variant_sinewma(src, len) :
      
      type=="Geometric_Mean"  ? variant_geoMean(src, len) :
      
      type=="Butterworth_2Pole" ? variant_butt2pole(src, len) : 
      type=="Smoothed_MA"  ? variant_smoothed(src, len) :
      type=="Triangular_MA"  ? variant_trima(src, len) : 
      type=="McGuinley" ? variant_mg(src, len) : 
      type=="DEMA"  ? variant_doubleema(src, len):  
      type=="Super_Smoother"  ? variant_supersmoother(src, len) : 
      type=="Zero_Lag"  ? variant_zerolagema(src, len) :  
      type=="Wilders"? variant_WiMA(src, len) : variant_sma(src, len)


c1=#44E2D6
c2=#DDD10D
c3=#0AA368
c4=#E0670E
c5=#AB40B2

cRed = #F93A00


ma1 =  variant(type, ssrc, len1)
ma2 =  variant(type, ssrc, len2)
ma3 =  variant(type, ssrc, len3)
ma4 =  variant(type, ssrc, len4)
ma5 =  variant(type, ssrc, len5)
ma6 =  variant(type, ssrc, lenrib)
ma7 =  variant(type, ssrc, lenrib2)
ma8 =  variant(type, ssrc, lenrib3)
ma9 =  variant(type, ssrc, lenrib4)

col1 = c1
col2 = c2
col3 = c3
col4 = c4
col5 = c5

p1 = plot(onOff1 ? ma1 : na, title = "MA 1",  color = col1,  linewidth = linew, style = linebr)
p2 = plot(onOff2 ? ma2 : na, title = "MA 2",  color = col2,  linewidth = linew, style = linebr)
p3 = plot(onOff3 ? ma3 : na, title = "MA 3",  color = col3,  linewidth = linew, style = linebr)
p4 = plot(onOff4 ? ma4 : na, title = "MA 4",  color = col4,  linewidth = linew, style = linebr)
p5 = plot(onOff5 ? ma5 : na, title = "MA 5",  color = col5,  linewidth = linew, style = linebr)
p6 = plot(onOff6 ? ma6 : na, title = "MA 6",  color = col5,  linewidth = linew, style = linebr)
p7 = plot(onOff7 ? ma7 : na, title = "MA 7",  color = col5,  linewidth = linew, style = linebr)
p8 = plot(onOff8 ? ma8 : na, title = "MA 8",  color = col5,  linewidth = linew, style = linebr)
p9 = plot(onOff9 ? ma9 : na, title = "MA 9",  color = col5,  linewidth = linew, style = linebr)

longCond = crossover(ma2, ma3)
if longCond and testPeriod()
    strategy.entry("buy", strategy.long, qty = orderQty, when = open > ma2[1])

shortCond = crossunder(ma2, ma3)
if shortCond and testPeriod()
    strategy.entry("sell", strategy.short, qty = orderQty, when = open < ma2[1])

plotshape(series=plotInd? longCond : na, title="P", style=shape.triangleup, location=location.belowbar, color=green, text="P", size=size.small)   
plotshape(series=plotInd? shortCond : na, title="N", style=shape.triangledown, location=location.abovebar, color=red, text="N", size=size.small)