TASC 2011-09 | Ermanometry For Intraday Traders (Coles)

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Traders' Tip text

The code for time-based Ermanometry system is available for instant download from Wealth-Lab's "Open Strategy" dialog.

Figure 1. A Wealth-Lab Developer 6.2 chart showing the Ermanometry/Coles bar chart markup applied to a Daily chart. The Erman bars are red and the Coles series are blue.

Users should be aware that with methods without a rock solid starting point, it's an open question whether does automating line placement on the chart removes the subjectivity. And one thing's for sure: If you draw enough lines on a chart, some of them are bound to hit important turning points.

WealthScript Code (C#)


using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class Ermanometry : WealthScript
	{
		Font font = new Font("Wingdings", 8, FontStyle.Bold);
		Font font2 = new Font("Verdana", 7, FontStyle.Regular);
		string upArrow = Convert.ToChar(0x00E9).ToString();
		string dnArrow = Convert.ToChar(0x00EA).ToString();
		
		private StrategyParameter paramEF;
		private StrategyParameter paramDE;
		private StrategyParameter paramStartBar;
		
		public Ermanometry()
		{
			paramEF = CreateParameter("seed segment EF", 10, 1, 900, 1);
			paramDE = CreateParameter("seed segment DE", 10, 1, 900, 1);
			paramStartBar = CreateParameter("Start bar", 1, 1, 1440, 1);
		}

		protected override void Execute()
		{
			int EF = paramEF.ValueInt;
			int DE = paramDE.ValueInt;

			int Ratio=EF/DE;
			double Inverseratio = 1d/Ratio;
			
			double CD=DE*Inverseratio;
			double BC=CD*Inverseratio;
			double AB=BC*Inverseratio;
			double FG= EF*Ratio;
			double GH=FG*Ratio;
			double HI=GH*Ratio;
			double IJ=HI*Ratio;

			double FH= Math.Sqrt(Math.Pow(FG,2)+Math.Pow(GH,2));
			
			int x = 0; // bars since
			SetBarColors( Color.Silver,Color.Silver );
			HideVolume();

			int init = Math.Min(Bars.Count-1, paramStartBar.ValueInt);
			
			for(int bar = init; bar < Bars.Count; bar++)
			{
				x = bar - init;
               
				// Marking Ermanometry bars
				bool cond01 = (x==Math.Round(FH)); //Erman
				bool cond02 = (x==Math.Round(GH)); //Erman
				bool cond03 = (x==Math.Round(HI)); //Erman
				bool cond04 = (x==Math.Round(IJ)); //Erman
				bool cond05 = (x==Math.Round(DE+EF+CD)); //Erman
				bool cond06 = (x==Math.Round(GH+HI+IJ)); //Erman
				bool cond07 = (x==Math.Round(CD+DE+EF+FG+GH+HI)); //Erman
				bool cond08 = (x==Math.Round(EF+FG+GH)); //Erman
				bool cond09 = (x==Math.Round(CD+DE+EF+FG+GH)); //Erman
				bool cond10 = (x==Math.Round(CD+DE+EF+FG+GH+HI)); //Erman
				bool cond11 = (x==Math.Round(GH+IJ+CD+AB+EF)); //Erman
			
				if( cond01 || cond02 || cond03 || cond04 || cond05 || 
					cond06 || cond07 || cond08	|| cond09 || cond10 || cond11
				) {
					AnnotateBar(upArrow, bar, false, Color.Red, Color.Transparent, font);
					AnnotateBar( "E", bar, false, Color.Red, Color.Transparent, font2);
					SetBarColor( bar, Color.Red );
				}
				
				cond01 = (x==Math.Round(FH+FG+GH)); //Coles
				cond02 = (x==Math.Round(AB+BC+CD+DE)); //Coles
				cond03 = (x==Math.Round(AB+BC+CD+DE+GH)); //Coles
				cond04 = (x==Math.Round(FG+GH)); //Coles				
				cond05 = (x==Math.Round(GH+HI)); //Coles				
				cond06 = (x==Math.Round(FG+BC+CD)); //Coles
				cond07 = (x==Math.Round(FG+BC+CD+DE)); //Coles				
				cond08 = (x==Math.Round(CD+BC)); //Coles
				cond09 = (x==Math.Round(DE+BC)); //Coles
				cond10 = (x==Math.Round(Math.Sqrt(Math.Pow(CD,2)+Math.Pow(DE,2))+CD+DE)); //Coles
				cond11 = (x==Math.Round(Math.Sqrt(Math.Pow(EF,2)+Math.Pow(FG,2))+EF+FG)); //Coles
				
				// Marking Coles bars
				if( cond01 || cond02 || cond03 || cond04 || cond05 || 
					cond06 || cond07 || cond08	|| cond09 || cond10 || cond11
				) {
					AnnotateBar(upArrow, bar, false, Color.Blue, Color.Transparent, font);
					AnnotateBar( "C", bar, false, Color.Blue, Color.Transparent, font2);
					SetBarColor( bar, Color.Blue );
				}
			}
		}
	}
}