Counting Up & Down Volume Days

Author: Tobey

Creation Date: 7/31/2015 9:32 AM

Wealth Lab » WealthScript (.NET) » Counting Up & Down Volume Days

Tobey

7/31/2015 9:32 AM

Hi Cone & Eugene,

In looking at long flat bases I'd like to count the number of up days on big volume and the number of down days on big volume. The idea is, If there are more up days on big volume than down days value investors are buying in before a move up.

The period for the counting would be the last 50 days

A big volume up day would equal

If close is greater than yesterday and volume was 150% greater than the average volume for the last 50 days count as big up volume day.

A big volume down day would equal

If close is less than yesterday and volume was 150% greater than the average volume for the last 50 days count as big down volume day.

Plot the number of big up volume days - big down volume days.

Is there an example of something like this that I could use as a temple to get stated.

Many Thanks
Tobey

Eugene

7/31/2015 11:34 AM

Tobey,

QUOTE:
If close is greater than yesterday and volume was 150% greater than the average volume for the last 50 days count as big up volume day.

It's trivial to implement yourself using the Rule Wizard. Both conditions are selectable from the "Price (or Volume) Action" group. Here's your "big volume up day":

big-volume-day.png

Tobey

7/31/2015 5:36 PM

Hi Eugene,

The above code/rule would buy on one day up with heavy volume. I'd like to count the number of Up days - the number of down days on heavy volume over the last 50 days. Then the buys signal would be the count of Up days on heavy volume 2 greater that the down days on heavy volume.

What I was hope to find was some code that would count the number of occurrences of something in a given time period.

Thanks again for the help.
Tobey

Eugene

7/31/2015 6:54 PM

QUOTE:
I'd like to count the number of Up days - the number of down days on heavy volume over the last 50 days. Then the buys signal would be the count of Up days on heavy volume 2 greater that the down days on heavy volume.

Here's how your signal might be coded using the built-in Sum indicator:

CODE:
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[quote]I'd like to count the number of Up days - the number of down days on heavy volume over the last 50 days. Then the buys signal would be the count of Up days on heavy volume 2 greater that the down days on heavy volume.[/quote]

Here's how your signal might be coded using the built-in [link=http://www2.wealth-lab.com/WL5WIKI/Sum.ashx]Sum[/link] indicator:

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

namespace WealthLab.Strategies
{
	public class PriceVolumeRank : WealthScript
	{
		protected override void Execute()
		{
			DataSeries dsBVUD = new DataSeries(Bars,"BigVolumeUpDays");
			DataSeries dsBVDD = new DataSeries(Bars,"BigVolumeDownDays");			
			SMA smaVol = SMA.Series(Volume,50);
			int days = 5;
			
			for(int bar = GetTradingLoopStartBar(50); bar < Bars.Count; bar++)
			{				
				//A big volume up day would equal
				//If close is greater than yesterday and volume was 150% greater than the average volume for the last 50 days count as big up volume day.

//A big volume down day would equal
				//If close is less than yesterday and volume was 150% greater than the average volume for the last 50 days count as big down volume day. 
         
				bool bigVol = Volume[bar] > smaVol[bar-1] * 1.5;
				int upDay = (Close[bar] > Close[bar-1]) && bigVol ? 1 : 0;
				int dnDay = (Close[bar] < Close[bar-1]) && bigVol ? 1 : 0;

//I'd like to count the number of Up days - the number of down days on heavy volume over the last 50 days. 
				//Then the buys signal would be the count of Up days on heavy volume 2 greater that the down days on heavy volume.

dsBVUD[bar] = upDay;
				dsBVDD[bar] = dnDay;
			}
			
			dsBVUD = Sum.Series(dsBVUD,50);
			dsBVDD = Sum.Series(dsBVDD,50);
         
			ChartPane cpD = CreatePane( 30,true,true );
			ChartPane cpU = CreatePane( 30,true,true );
			PlotSeries( cpU, dsBVUD, Color.Red, WealthLab.LineStyle.Histogram, 3 );
			PlotSeries( cpD, dsBVDD, Color.Blue, WealthLab.LineStyle.Histogram, 3 );
         
			for(int bar = 1; bar < Bars.Count; bar++)
			{
				if (IsLastPositionActive)
				{
					// Exit after N days
					
					Position p = LastPosition;
					if ( bar+1 - p.EntryBar >= days )
						SellAtMarket( bar+1, p, "Timed" ); 
				}
				else
				{
					if (dsBVUD[bar] > dsBVDD[bar] * 2)
					{
						SetBackgroundColor( bar, Color.FromArgb( 30, Color.Red ) );
						BuyAtMarket(bar+1);
					}
				}
			}
		}
	}
}[/code]