Larry Williams EMA9 setup - Wealth Lab Forum

Larry Williams EMA9 setup

Author: steinhorst

Creation Date: 5/19/2020 1:30 AM

Wealth Lab » Trading Strategies » Larry Williams EMA9 setup

steinhorst

5/19/2020 1:30 AM

Hi Eugene!!

Is it possible to code this tend following setup, by Willians? It is very used here in Brazil. I´d like to test it in commodities market, specially corn.

Trandingview user did these coding.
https://br.tradingview.com/script/5E0eLcge/

I tried usind strategy from rules.. but cant get it.

Thanks !

Larry Willians MME9.png

Eugene

5/19/2020 8:16 AM

Olá Luis!

Here you go.

Note that the English writeup doesn't quite match the TradingView code in that it highlight setups (9.2 to 9.4) on the chart but the entries require more conditions than there is in the code. The rules 9.2 to 9.4 are not crystal clear to me (e.g. the meaning of "mark the next high" is ambiguous etc).

For this reason I only came up with an approximation that buys/sells at market while the original intention is to enter at stop order when price exceeds the high of the setup bar, for example.

Hope you find this visual aid helpful.

CODE:
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Olá Luis!

Here you go.

Note that the English writeup doesn't quite match the TradingView code in that it highlight setups (9.2 to 9.4) on the chart but the entries require more conditions than there is in the code. The rules 9.2 to 9.4 are not crystal clear to me (e.g. the meaning of "mark the next high" is ambiguous etc).

For this reason I only came up with an approximation that buys/sells at market while the original intention is to enter at stop order when price exceeds the high of the setup bar, for example.

Hope you find this visual aid helpful.

[code]using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class LarryWilliamsEMA9 : WealthScript
	{
		private StrategyParameter paramMode;

public LarryWilliamsEMA9()
		{
			paramMode = CreateParameter("Mode:", 1, 1, 4, 1);
		}
		
		protected override void Execute()
		{
			var ema9 = EMAModern.Series(Close, 9);
			var mode = paramMode.ValueInt;

SetBarColors(Color.Silver, Color.Silver);

for(int bar = GetTradingLoopStartBar(7); bar < Bars.Count; bar++)
			{
				//SETUP 9.1
				var ema91s1 = (CumUp.Series(ema9, 1)[bar - 1] >= 4) && ema9[bar - 1] > ema9[bar];
				var ema91s2 = Close[bar] < ema9[bar];

var ema91b1 = (CumDown.Series(ema9, 1)[bar - 1] >= 4) && ema9[bar - 1] < ema9[bar];
				var ema91b2 = Close[bar] > ema9[bar];

var cond91b = ema91b1 && ema91b2;
				var cond91s = ema91s1 && ema91s2;

if (cond91b)
				{
					AnnotateBar("9.1", bar, false, Color.DarkGreen);
					SetBarColor(bar, Color.DarkGreen);
				}
				if (cond91s)
				{
					AnnotateBar("9.1", bar, true, Color.Red);
					SetBarColor(bar, Color.Red);
				}

//SETUP 9.2
				var ema92b1 = (CumUp.Series(ema9, 1)[bar - 2] >= 3) && ema9[bar - 1] <= ema9[bar];
				var ema92b2 = ema9[bar] >= ema9[bar - 1] && Close[bar - 1] > Close[bar - 2] && Close[bar] < Low[bar - 1];

var ema92s1 = (CumDown.Series(ema9, 1)[bar - 2] >= 3) && ema9[bar - 1] >= ema9[bar];
				var ema92s2 = ema9[bar] <= ema9[bar - 1] && Close[bar - 1] < Close[bar - 2] && Close[bar] > High[bar - 1];

var cond92b = ema92b1 && ema92b2;
				var cond92s = ema92s1 && ema92s2;

if (cond92b)
				{
					AnnotateBar("9.2", bar, false, Color.Green);
					SetBarColor(bar, Color.Green);
				}
				if (cond92s)
				{
					AnnotateBar("9.2", bar, true, Color.Red);
					SetBarColor(bar, Color.Red);
				}

//SETUP 9.3
				var ema93b1 = (CumUp.Series(ema9, 1)[bar - 1] >= 7);
				var ema93b2 = Close[bar - 1] < Close[bar - 2] && Close[bar] < Close[bar - 2] && Close[bar - 2] > Close[bar - 3] && Close[bar - 1] > Low[bar - 2];

var ema93s1 = (CumDown.Series(ema9, 1)[bar - 1] >= 7);
				var ema93s2 = Close[bar - 1] > Close[bar - 2] && Close[bar] > Close[bar - 2] && Close[bar - 2] < Close[bar - 3] && Close[bar - 1] < High[bar - 2];

var cond93b = ema93b1 && ema93b2;
				var cond93s = ema93s1 && ema93s2;

if (cond93b)
				{
					AnnotateBar("9.3", bar, false, Color.Green);
					SetBarColor(bar, Color.Green);
				}
				if (cond93s)
				{
					AnnotateBar("9.3", bar, true, Color.Red);
					SetBarColor(bar, Color.Red);
				}

//SETUP 9.4
				var ema94b1 = (CumUp.Series(ema9, 1)[bar - 2] >= 3) && ema9[bar - 2] > ema9[bar - 1] && ema9[bar - 1] < ema9[bar];
				var ema94b2 = Low[bar] >= Low[bar - 1];

var ema94s1 = (CumDown.Series(ema9, 1)[bar - 2] >= 3) && ema9[bar - 2] < ema9[bar - 1] && ema9[bar - 1] > ema9[bar];
				var ema94s2 = Close[bar] < ema9[bar];

var cond94b = ema94b1 && ema94b2;
				var cond94s = ema94s1 && ema94s2;

if (cond94b)
				{
					AnnotateBar("9.4", bar, false, Color.Green);
					SetBarColor(bar, Color.Green);
				}
				if (cond94s)
				{
					AnnotateBar("9.4", bar, true, Color.Red);
					SetBarColor(bar, Color.Red);
				}
				
				if (IsLastPositionActive)
				{
					var p = LastPosition;
					switch (mode)
					{
						case 1: if (cond91s) SellAtMarket(bar + 1, p, "9.1"); break;
						case 2:	if (cond92s) SellAtMarket(bar + 1, p, "9.2"); break;
						case 3: if (cond93s) SellAtMarket(bar + 1, p, "9.3"); break;
						case 4: if (cond94s) SellAtMarket(bar + 1, p, "9.4"); break;
						default: break;
					}
				}
				else
				{
					switch (mode)
					{
						case 1: if( cond91b ) BuyAtMarket(bar + 1, "9.1"); break;
						case 2: if( cond92b ) BuyAtMarket(bar + 1, "9.2"); break;
						case 3: if( cond93b ) BuyAtMarket(bar + 1, "9.3"); break;
						case 4: if( cond94b ) BuyAtMarket(bar + 1, "9.4"); break;
						default: break;
					}
				}
			}
		}
	}
};[/code]

RicardoCaput

6/17/2020 2:02 AM

Hi! Thanks Eugene, that's very helpful. Tho if I want to back test the setups one by one how could I code them apart?

"The rules 9.2 to 9.4 are not crystal clear to me (e.g. the meaning of "mark the next high" is ambiguous etc)" I could help you with the rules if you elaborate about what you quite dont get on it.

Thanks again.

Eugene

6/17/2020 4:53 AM

Hi Ricardo,

Appreciate your interest. However, before anything else please create a support ticket to verify your Fidelity Wealth-Lab Pro entitlement.

QUOTE:
Hi! Thanks Eugene, that's very helpful. Tho if I want to back test the setups one by one how could I code them apart?

"The rules 9.2 to 9.4 are not crystal clear to me (e.g. the meaning of "mark the next high" is ambiguous etc)" I could help you with the rules if you elaborate about what you quite dont get on it.

Thanks again.