This script adds a Bill Williams Alligator to your charts and the three wisemen:
1. Wiseman 1 - Bullish or bearish divergent bars shown with a circle (be sure to check angulation manually).
2. Wiseman 2 - Super AO - with a square.
3 Wiseman 3 - Fractal with a triangle.
Be sure to wait until the current bar is closed before using these signals.
Reference: TradingChaos Version 2
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.

Disclaimer

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Want to use this script on a chart?
//See Bill Williams, Trading Chaos V2 and www.profitunity.com
//Alligator - an excellent trend filter: trade only when the lines are open, not when they wind around each other.
//Note: exponential moving average parameters used here give the same results as with the SMMA.
//Wiseman 1: Bullish and bearish divergent bars - indicated by a circle - be sure to check angulation manually.
//Wiseman 2: The Super AO signal, indicated by a square.
//Wiseman 3: All ten of Bill Williams fractal formation from his book indcated by triangles.
//Note: bar colors were not used so that you can choose candles rather than bars if you wish.
//
study(title="Chaos", shorttitle="Chaos",overlay = true)
jawLength = 25
teethLength = 15
lipsLength = 9
jaw = ema(hl2, jawLength)
teeth = ema(hl2, teethLength)
lips = ema(hl2, lipsLength)
plot(jaw, offset = 8, color=blue)
plot(teeth, offset = 5, color=red)
plot(lips, offset = 3, color=lime)
ao = sma(hl2,5) - sma(hl2,34)
wm1long = close > hl2 and low == lowest(low,2) and ao < 0 and ao < ao[1]
plotshape(wm1long, style=shape.circle, location=location.belowbar,color=black,size=size.tiny)
wm1short = close <= hl2 and high == highest(high,5) and ao > 0 and ao > ao[1]
plotshape(wm1short, style=shape.circle, location=location.abovebar,color=black,size=size.tiny)
wm2long = ao < 0 and ao > ao[1] and ao[1] > ao[2] and ao[2] > ao[3] and ao[3] < ao[4]
plotshape(wm2long, style=shape.square, location=location.belowbar,color=black,transp=0,size=size.tiny)
wm2short = ao > 0 and ao < ao[1] and ao[1] < ao[2] and ao[2] < ao[3] and ao[3] > ao[4]
plotshape(wm2short, style=shape.square, location=location.abovebar,color=black,transp=0,size=size.tiny) 
wm3long = (high < high[2] and high[1] < high[2] and high[3] < high[2] and high[4] < high[2]) or
          (high < high[2] and high[1] < high[2] and high[3] == high[2] and high[4] < high[2] and high[5] < high[2]) or
          (high < high[2] and high[1] < high[2] and high[3] == high[2] and high[4] == high[2] and high[5] < high[2] and high[6] < high[2]) or
          (high < high[2] and high[1] < high[2] and high[3] < high[2] and high[4] == high[2] and high[5] < high[2] and high[6] < high[2])  or
          (high < high[2] and high[1] < high[2] and high[3] < high[2] and high[4] == high[2] and high[5] < high[2] and high[6] == high[2] and high[7] < high[2] and high[8] < high[2])
plotshape(wm3long, style=shape.triangleup, location=location.abovebar,offset=-2,color=green,transp=50,size=size.small) 
wm3short = (low > low[2] and low[1] > low[2] and low[3] > low[2] and low[4] > low[2]) or
           (low > low[2] and low[1] > low[2] and low[3] == low[2] and low[4] > low[2] and low[5] > low[2]) or
           (low > low[2] and low[1] > low[2] and low[3] == low[2] and low[4] == low[2] and low[5] > low[2] and low[6] > low[2]) or
           (low > low[2] and low[1] > low[2] and low[3] > low[2] and low[4] == low[2] and low[5] > low[2] and low[6] > low[2])  or
           (low > low[2] and low[1] > low[2] and low[3] > low[2] and low[4] == low[2] and low[5] > low[2] and low[6] == low[2] and low[7] > low[2] and low[8] > low[2])
plotshape(wm3short, style=shape.triangledown, location=location.belowbar,offset=-2,color=red,transp=50,size=size.small)