How to create indicator MACD histogram 12,26,9

ayc868

#1

3/3/2008 1:11 AM

Wealth-Lab Version 5 (.NET) 5.0

the property do not have those parameters

Eugene

#2

3/3/2008 1:16 AM

There's no need for input: MACD is always created with this standard set of parameters -- 12,26,9.

Should you need to enter your own non-standard parameters for MACD, then use MACDEx instead.

fundtimer

#3

3/3/2008 1:46 AM

Or subtract two emas in ver 5.0.

Eugene

#4

3/3/2008 3:13 AM

Couldn't believe there was the "WL5" tag line in the original post when I replied.

CODE:
Please log in to see this code.

Size:

Color:

Couldn't believe there was the "WL5" tag line in the original post when I replied.

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

namespace WealthLab.Strategies
{
	public class MACDEx : DataSeries
	{
		public MACDEx ( Bars bars, DataSeries Series, int Period1, int Period2 ) : base(bars,"MACDEx")
		{
			EMACalculation m = EMACalculation.Modern;
			for(int bar = Math.Max(Period1,Period2); bar < bars.Count; bar++)
				this[bar] = EMA.Series( Series, Period1, m )[bar] - EMA.Series( Series, Period2, m )[bar];
		}

public static MACDEx Series( Bars bars, DataSeries Series, int Period1, int Period2 )
		{
			MACDEx _MACDEx = new MACDEx( bars, Series, Period1, Period2 );
			return _MACDEx;
		}
	}

public class Demo : WealthScript
	{
		private StrategyParameter paramPeriod1;
		private StrategyParameter paramPeriod2;
		
		public Demo()
		{
			paramPeriod1 = CreateParameter("Shorter EMA", 12, 2, 20, 1);
			paramPeriod2 = CreateParameter("Longer EMA", 26, 20, 40, 1);
		}
		
		protected override void Execute()
		{
			EMACalculation m = EMACalculation.Modern;
			int shorter = paramPeriod1.ValueInt;
			int longer = paramPeriod2.ValueInt;
	
			MACDEx macdex = new MACDEx( Bars, Close, shorter, longer );
			DataSeries sigLine = EMA.Series( macdex, 9, m ); sigLine.Description = "Signal line";
	
			DataSeries macdHist = macdex - sigLine;
	
			ChartPane macdexPane = CreatePane( 30, true, true );
			PlotSeries( macdexPane, macdex, Color.Black, LineStyle.Solid, 2 );
			PlotSeries( macdexPane, sigLine, Color.Red, LineStyle.Solid, 2 );
			PlotSeries( macdexPane, macdHist, Color.Black, LineStyle.Histogram, 1 );
		} 
	}
}[/code]

ayc868

#5

3/4/2008 2:46 AM

When I drag & drop MACD from "plot an indicator". It is an curve, but not an histogram. When I move cursor, it shows
MACD(close)=0.26 etc..

when look at the chart, i can not tell what kind of chart it is?

Eugene

#6

3/4/2008 3:12 AM

When I drag & drop MACD from "plot an indicator". It is an curve, but not an histogram.

That's why the code above. There you have complete control of what's on the screen.

Cone

#7

3/4/2008 3:15 AM

There seems to be some confusion here about what the MACD and a MACD Histogram are all about.

CODE:
Please log in to see this code.

In Eugene's code, the MACD should be plotted as a solid line. The Histogram is the difference between the MACD and its signal line. Eugene has corrected the Execute method above to reflect this.

Eugene

#8

3/4/2008 3:22 AM

Robert, thanks, your correction was applied.

ayc868

#9

3/5/2008 2:00 AM

In TC2000, I have the set up MACD histogram and line crossover
in one panel. but don't know how to setup in Wealth-lab 5.0.
In TC2000, to me it is almost a no brain work. I have been spend 5 hours in WL5, just can not get a MACD indicator in the chart. If i call Fidelity, can they help me on this?

Eugene

#10

3/5/2008 2:09 AM

ayc868,

The code above is plotting a histogram with line crossover. What is wrong?

Cone

#11

3/5/2008 4:28 AM

ayc, after you paste code, make sure that you compile it by clicking either "Run the Strategy" (which compiles first) or "Compile" in the Editor toolbar. If you "Compile", you must still run it by clicking a symbol or striking F5.

ayc868

#12

3/5/2008 1:12 PM

I do not compile, will try when home. Thank Cone
Curious, can WL5 show indicators in the chart without write codes? also, any place have large amount of #C source codes
doing all kind of work? (other than sample strategy)

ayc868

#13

3/6/2008 2:08 AM

The MACDEx histogram (codes from Eugene)looks completely different compare with TC2000 weekly chart.

Eugene

#14

3/6/2008 2:30 AM

Which settings? What symbol? A screenshot?

ayc868

#15

3/7/2008 2:49 AM

How do I put in a moving average SMA 3 on signal line?

Eugene

#16

3/7/2008 2:57 AM

How do I put in a moving average SMA 3 on signal line?

1) Either drag and drop the SMA over the signal line (until you see squares all over it, drop only then), 2) or, by including an extra line of code (below the similarly looking lines):