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FTL - Range Filter X2 + EMA + UO

Penulis:ChaoZhang, Tanggal: 2022-05-13 16:09:07
Tag:EMA

Skrip ini menggabungkan dua filter rentang, EMA dan Ultimate oscillator. Ini adalah jenis script indikator dengan peringatan yang ideal untuk scalping satu menit dan awalnya dikembangkan untuk NAS100 tetapi telah digunakan dengan sukses dengan simbol lain. Dua filter rentang digunakan untuk mendeteksi ketika tren jangka pendek dan menengah berada di arah yang sama. EMA menunjukkan tren jangka panjang dan UO digunakan untuk menentukan apakah suatu aset terlalu banyak dibeli atau terlalu banyak dijual. Indikator ini berpasangan dengan baik dengan indikator divergensi untuk menambahkan pertemuan pada perubahan arah.

Fitur tambahan dari indikator ini:

Mengkonfigurasi apakah untuk menunjukkan label beli dan jual hanya ketika aset tidak overbought atau oversold
Pilih apakah akan menunjukkan pembelian hanya ketika harga di atas EMA, atau menjual hanya di bawah EMA
Tanda bar di mana tren melintasi EMA dan pilih apakah crossover atau cross under hanya harus ditampilkan dalam tren lawan.
Pullbacks dalam tren dapat diidentifikasi. Ini dapat menunjukkan kelanjutan tren.
Peringatan dapat dibuat untuk penarikan, penyeberangan EMA dan untuk sinyal beli atau jual

backtest

/*backtest
start: 2022-04-12 00:00:00
end: 2022-05-11 23:59:00
period: 2h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5


// Original Script > @DonovanWall

// Previous Version > @guikroth
// Ultimate Oscillator > @PineCoders

// Updated by > @jwelmac


//////////////////////////////////////////////////////////////////////////
// Range Filter x 2, EMA and UO
//////////////////////////////////////////////////////////////////////////


indicator(title='FTL - Range Filter X2 + EMA + UO', overlay=true)

// Groups

string groupLeadingRange = "Leading Range Filter"
string groupTriggerRange = "Trigger Range Filter"
string groupEMA = "EMA"
string groupUO = "Ultimate Oscillator (UO)"
string GROUP_BUY_OPTIONS = "Buy Options"
string GROUP_SELL_OPTIONS = "Sell Options"


//-------  *********  --------  *********  ---------
// Range Filter (Leader) {

// Source
src = input(defval=hl2, title='Source', group=groupLeadingRange)

// Sampling Period
per = input.int(defval=30, minval=1, title='Sampling Period', group=groupLeadingRange)

// Range Multiplier
mult = input.float(defval=2.6, minval=0.1, title='Range Multiplier', group=groupLeadingRange)

// Smooth Average Range {
smoothrng(x, t, m) =>
    wper = t * 2 - 1
    avrng = ta.ema(math.abs(x - x[1]), t)
    _smoothrng = ta.ema(avrng, wper) * m
    _smoothrng
// }
smrng = smoothrng(src, per, mult)

// Range Filter{
rngfilter(x, r) =>
    rngfilt = x
    rngfilt := x > nz(rngfilt[1]) ? x - r < nz(rngfilt[1]) ? nz(rngfilt[1]) : x - r : x + r > nz(rngfilt[1]) ? nz(rngfilt[1]) : x + r
    rngfilt
//}
filt = rngfilter(src, smrng)

// Filter Direction

upward = 0.0
upward := filt > filt[1] ? nz(upward[1]) + 1 : filt < filt[1] ? 0 : nz(upward[1])

downward = 0.0
downward := filt < filt[1] ? nz(downward[1]) + 1 : filt > filt[1] ? 0 : nz(downward[1])


// Colors

filtcolor = upward > 0 ? color.lime : downward > 0 ? color.red : color.orange

filtplot = plot(filt, color=filtcolor, linewidth=1, title='Range Filter (Leader)')

// }
//-------  *********  --------  *********  ---------

//-------  *********  --------  *********  ---------
// Range Filter (Trigger){
// Source
src2 = input(defval=ohlc4, title='Source', group=groupTriggerRange)

// Sampling Period
// Settings for 1min chart, US 100.

per2 = input.int(defval=48, minval=1, title='Sampling Period', group=groupTriggerRange)

// Range Multiplier

mult2 = input.float(defval=3.4, minval=0.1, title='Range Multiplier', group=groupTriggerRange)

// Smooth Average Range

smrng2 = smoothrng(src2, per2, mult2)

// Range Filter

rngfilt2(x, r) =>
    rngfilt = x
    rngfilt := x > nz(rngfilt[1]) ? x - r < nz(rngfilt[1]) ? nz(rngfilt[1]) : x - r : x + r > nz(rngfilt[1]) ? nz(rngfilt[1]) : x + r
    rngfilt
filt2 = rngfilt2(src2, smrng2)

// Filter Direction

upward2 = 0.0
upward2 := filt2 > filt2[1] ? nz(upward2[1]) + 1 : filt2 < filt2[1] ? 0 : nz(upward2[1])
downward2 = 0.0
downward2 := filt2 < filt2[1] ? nz(downward2[1]) + 1 : filt2 > filt2[1] ? 0 : nz(downward2[1])

// Colors

filtcolor2 = upward2 > 0 ? color.lime : downward2 > 0 ? color.red : color.orange

filtplot2 = plot(filt2, color=filtcolor2, linewidth=3, title='Range Filter (trigger)')

barcolor = src2 > filt2 and upward2 > 0
   ? color.green 
   : src2 < filt2 and downward > 0 
     ? color.red 
     : color.rgb(120, 123, 134)
// Bar Color
//barcolor(barcolor)

// }
//-------  *********  --------  *********  ---------


//-------  *********  --------  *********  ---------
// Default EMA 144 {
len4 = input.int(144, minval=1, title='Length', group=groupEMA)
src4 = input(close, title='Source')
ema = ta.ema(src4, len4)
plot(ema, linewidth=3, color=color.new(color.yellow, 0), title='EMA')
closeAboveEma = close > ema
closeBelowEma = close < ema

uptrendCrossoverOnly = input.bool(false, title="Show crossover only in uptrend", group=groupEMA)
downtrendCrossunderOnly = input.bool(false, title="Show crossunder only in downtrend", group=groupEMA)
// END EMA
// }
//-------  *********  --------  *********  ---------


// ------ UO {
average(bp, tr_, length) => math.sum(bp, length) / math.sum(tr_, length)
uo() =>
    length1 = input.int(7, minval=1, title = "Fast Length", group=groupUO), 
    length2 = input.int(14, minval=1, title = "Middle Length", group=groupUO), 
    length3 = input.int(28, minval=1, title = "Slow Length", group=groupUO)
    high_ = math.max(high, close[1])
    low_ = math.min(low, close[1])
    bp = close - low_
    tr_ = high_ - low_
    avg7 = average(bp, tr_, length1)
    avg14 = average(bp, tr_, length2)
    avg28 = average(bp, tr_, length3)
    100 * (4*avg7 + 2*avg14 + avg28)/7
uoLevel = uo()
// }



// Break Outs
// Conditions {

longCond = bool(na)
shortCond = bool(na)
longCond := src > filt2 and src > src[1] and upward2 > 0 or src > filt2 and src < src[1] and upward2 > 0
shortCond := src < filt2 and src < src[1] and downward2 > 0 or src < filt2 and src > src[1] and downward2 > 0

CondIni = 0
CondIni := longCond ? 1 : shortCond ? -1 : CondIni[1]


// Long (Buy){
overBoughtLevel = input.float(defval=60, minval=50, title='UO Overbought value', group=GROUP_BUY_OPTIONS)
longWhenNotOverbought = input.bool(true, title = 'Show BUY only when not overbought (UO)', tooltip = 'Show BUY Signal only when not overbought according to UO', group=GROUP_BUY_OPTIONS)
longOnlyAboveEma = input.bool(true, title = 'Show BUY only above the EMA', tooltip = 'Show BUY Signal only when price closes above the EMA', group=GROUP_BUY_OPTIONS)

longCondition = longCond and CondIni[1] == -1
overBought = uoLevel > overBoughtLevel

if (longCondition and longWhenNotOverbought)
    longCondition := not overBought
    
if (longCondition and longOnlyAboveEma)
    longCondition := closeAboveEma
//}

// Short (Sell){
overSoldLevel = input.float(defval=40, maxval=50, title='UO Oversold value', group=GROUP_SELL_OPTIONS)
shortWhenNotOversold = input.bool(true, title = 'Show SELL only when not oversold (UO)', tooltip = 'Show SELL Signal only when not oversold according to UO', group=GROUP_SELL_OPTIONS)
shortOnlyBelowEma = input.bool(true, title = 'Show SELL only below the EMA', tooltip = 'Show SELL Signal only when price closes below the EMA', group=GROUP_SELL_OPTIONS)

shortCondition = shortCond and CondIni[1] == 1
overSold = uoLevel < overSoldLevel

if (shortCondition and shortWhenNotOversold)
    shortCondition := not overSold
    
if (shortCondition and shortOnlyBelowEma)
    shortCondition := closeBelowEma
//}

// }

// Trend directions {
trendUp = upward and upward2
trendDown = downward and downward2
// }

// MA Crossover{
arrowSize = size.small

emaCrossover = 'EMA Crossover'
didEmaCrossover = (not uptrendCrossoverOnly or trendUp) and ta.crossover(close, ema)
plotshape(
  didEmaCrossover, 
  title = emaCrossover,
  style = shape.triangleup, 
  size = arrowSize, 
  location = location.belowbar, 
  color = color.new(color.green, 0)
  )

emaCrossunder = 'EMA Crossunder'
didEmaCrossunder = (not downtrendCrossunderOnly or trendDown) and ta.crossunder(close, ema)
plotshape(
  didEmaCrossunder, 
  title = emaCrossunder,
  style = shape.triangledown, 
  size = arrowSize, 
  location = location.abovebar, 
  color = color.new(color.red, 0)
  )
// }

// Pullbacks (a possible indicator of trend continuation) {
// Conditions: 
// - Both filters going in same direction 
sameDirection = trendUp or trendDown

// Did the previous candle close in the opposite direction 
prevOpp = (trendUp and close[1] < open[1]) or (trendDown and open[1] < close[1])

// Is the current candle in the trend direction
inTrendDirection = (trendDown and close < open) or (trendUp and close > open)

// - previous candle: crossover one or both in downtrend, crossunder one or both in uptrend
prevLimit = trendDown ? high[1] : low[1]
var previousCross = false

if (trendDown)
    previousCross := ta.crossover(prevLimit, filt[1]) or ta.crossover(prevLimit, filt2[1])
else 
    previousCross := ta.crossunder(prevLimit, filt[1]) or ta.crossunder(prevLimit, filt2[1])

// - current candle: crossunder one or both in downtrend, crossover one or both in uptrend
currentReturn = trendDown
  ? close < filt
  : close > filt

pullback = prevOpp and inTrendDirection and sameDirection and previousCross and currentReturn

uptrendPullback = 'Uptrend Pullback'
isUptrendPullback = pullback and trendUp
plotshape(
  isUptrendPullback, 
  title = uptrendPullback,
  style = shape.diamond, 
  size = arrowSize, 
  location = location.belowbar, 
  color = color.new(color.green, 0)
  )

downtrendPullback = 'Downtrend Pullback'
isDowntrendPullback = pullback and trendDown
plotshape(
  isDowntrendPullback, 
  title = 'Downtrend Pullback',
  style = shape.diamond, 
  size = arrowSize, 
  location = location.abovebar, 
  color = color.new(color.red, 0)
  )

// }

// Buy/Sell Signal {
plotshape(longCondition, title='Buy Signal', text='BUY', textcolor=color.new(color.white, 0), style=shape.labelup, size=size.normal, location=location.belowbar, color=color.new(color.green, 0))
plotshape(shortCondition, title='Sell Signal', text='SELL', textcolor=color.new(color.white, 0), style=shape.labeldown, size=size.normal, location=location.abovebar, color=color.new(color.red, 0))
//}

//Alerts{

alertcondition(longCondition, title='Buy Alert', message='BUY')
alertcondition(shortCondition, title='Sell Alert', message='SELL')

alertcondition(didEmaCrossover, title = emaCrossover, message = emaCrossover)
alertcondition(didEmaCrossunder, title = emaCrossunder, message = emaCrossover)

alertcondition(isUptrendPullback, title=uptrendPullback, message = uptrendPullback)
alertcondition(isDowntrendPullback, title=downtrendPullback, message = downtrendPullback)
// }


// For use like Strategy, {

//1. Change the word  "indicator" for "strategy" at the top
//2.  Remove the "//" below

//strategy.entry( id = "Long", long = true, when = longCondition )
//strategy.close( id = "Long", when = shortCondition )
// }

if longCondition
    strategy.entry("Enter Long", strategy.long)
else if shortCondition
    strategy.entry("Enter Short", strategy.short)

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