ICHIMOKU LAG LINE STRATEGY by greatwolf

Strategy Test using Ichimoku Cloud and lag line.

Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

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//@version=2
strategy(title = "Chikou Cloud Crossover", initial_capital = 200000, overlay = false)

takelong   = input(title = "Take Long Positions",  type = bool, defval = true)
takeshort  = input(title = "Take Short Positions", type = bool, defval = true)
waitcandle = input(title = "Enter on opposite candle", type = bool, defval = false)
usehtf     = input(title = "Check Higher Timeframe Kumo", type = bool, defval = false)
useFF      = input(title = "Use Fixed Fractional Size", defval = false, type = bool)
riskEQ     = input(title = "Equity Risk%", defval = 0.5, minval = 0, maxval = 100, type = float)
startyear  = input(title = "Start Year",  defval = 2000, minval = 1970, type = float)
startmonth = input(title = "Start Month", defval = 1,    minval = 1, maxval = 12, type = float)
startday   = input(title = "Start Day",   defval = 1,    minval = 1, maxval = 30, type = float)


// Plot equity curve
PLCurve = (strategy.initial_capital + strategy.netprofit) / strategy.initial_capital * 100
plot(PLCurve > 100 ? na : PLCurve, title = "-Equity Curve", style = areabr, linewidth = 2, color = #EA9999)
plot(PLCurve < 100 ? na : PLCurve, title = "+Equity Curve", style = areabr, linewidth = 2, color = lime)
hline(100, linestyle = dashed, linewidth = 1, color = silver)


// Ichimoku Components
conversionPeriods   = 9
basePeriods         = 26
kumoSpan2Periods    = 52
displacement        = 26

donchian(len) => avg(lowest(len), highest(len))
conversionLine = donchian(conversionPeriods)
baseLine       = donchian(basePeriods)
spanA          = offset(avg(conversionLine, baseLine), displacement)
spanB          = offset(donchian(kumoSpan2Periods), displacement)
lagLine(A, B) =>
    threshold = 2
    upper = offset(max(A, B), displacement)
    lower = offset(min(A, B), displacement)
    sum(close < lower, threshold) == threshold ? -1
   : sum(upper < close, threshold) == threshold ? 1
   : 0

htfconversionLine = donchian(conversionPeriods * 4)
htfbaseLine       = donchian(basePeriods * 4)
htfspanA          = offset(avg(htfconversionLine, htfbaseLine), displacement * 4)
htfspanB          = offset(donchian(kumoSpan2Periods * 4), displacement * 4)


// Trade entry/exit signals
upperSpan = max(spanA, spanB)
lowerSpan = min(spanA, spanB)
longStop  = min(baseLine, lowest(low, displacement * 4))
shortStop = max(baseLine, highest(high, displacement * 4))
bullish =  1
bearish = -1
trade_signal() =>
    (lagLine(spanA, spanB) == bullish and lagLine(conversionLine, baseLine) == bullish and conversionLine > baseLine and low > upperSpan and (usehtf ? close > htfspanB : true)) ? bullish
   : (lagLine(spanA, spanB) == bearish and lagLine(conversionLine, baseLine) == bearish and conversionLine < baseLine and high < lowerSpan and (usehtf ? close < htfspanB : true)) ? bearish
   : 0
open_signal(sig) => trade_signal() == sig
close_signal(sig) =>
    (sig == bullish and lagLine(spanA, spanB) == bearish) ? true
  : (sig == bearish and lagLine(spanA, spanB) == bullish)


// Trade execution
compute_position(risk, entry, stop) =>
    pricestop = max(entry, stop) - min(entry, stop)
    pos_size = risk / (pricestop * 1.5)
    nz(pos_size)
bar_filter() =>
    startingpoint = year > startyear or (year == startyear and (month > startmonth or (month == startmonth and dayofmonth >= startday)))

if (close_signal(bullish) and (takeshort ? not open_signal(bearish) : true))
    strategy.cancel("IchiLE")
    strategy.close("IchiLE")
if (close_signal(bearish) and (takelong ? not open_signal(bullish) : true))
    strategy.cancel("IchiSE")
    strategy.close("IchiSE")

riskamount = riskEQ  / 100 * (strategy.initial_capital + (useFF ? strategy.netprofit : 0))
strategy.entry("IchiLE", strategy.long,  compute_position(riskamount, highest(9), longStop), when = takelong and bar_filter() and open_signal(bullish))
strategy.entry("IchiSE", strategy.short, compute_position(riskamount, lowest(9), shortStop), when = takeshort and bar_filter() and open_signal(bearish))