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[amibroker] Re: Darvas again



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Hello,

you must have the Box.dll in the Plugin Folder and the help file 
gives:
DARVASBOX

First thanks to Jonf who has written the js code for the Darvas Box.
The plugin is Darvas(); it takes no parameters.

A better explanation of the construction of the Darvas Box is 
available at:

1) <http://www.gerryco.com/tech/darvas.html>
2) <http://www.wealth-lab.com/cgi-bin/WealthLab.DLL/editsystem?
id=2814>


A dll must return one statement , in the case of the darvas.dll, the 
function
Darvas() alone returns  the stateArray
but you can also extract other statements from the dll 
For example at the end of the source code of darvas.dll there are
 
	gSite.SetVariable( "BotArray", BotArray );
 	gSite.SetVariable( "TopArray", TopArray );
 	gSite.SetVariable( "DBuy", DBuy );
 	gSite.SetVariable( "DSell", DSell );
	gSite.SetVariable( "BoxArr1", BoxArr1 );
	gSite.SetVariable( "BoxArr2", BoxArr2 );
	gSite.SetVariable( "StateArray", StateArray );
	return StateArray;

All of these statements can be given by the plugin.
You can visualize the box with the following code.

D=Darvas();
Plot(C,"",1,64);
Plot(Boxarr1,"",D,512);
Plot(Boxarr2,"",D,512);
Plot(dbuy*C,"",5,2);
Plot(dsell*C,"",4,2);
Title= "Darvas dll";

Note that a box is valid when the state is 5. The color allows you to 
see the valid box .
The Botarray and Toparray are the valid Bot and Top
Dsell and Dbuy are the signals when a Low is below the BotArray or a 
High above the TopArray

Darvas forms "boxes" based on his studies of price actions.  

1) Step1=If PriceHigh stops making new highs for 3 days, make the 
PriceHigh 3 days ago the BoxTop and go to Step 2. 

2) Step2= If PriceHigh breaks BoxTop, go back to Step 1. Otherwise, 
If PriceLow stops making new lows for 3 days then Make the PriceLow 
the BoxBottom and go to Step 3. 

3) Step3=Now that the BoxTop and BoxBottom are formed, we have a 
Darvas Box. The Darvas Box is broken when today's PriceHigh or 
PriceLow breaks BoxTop or BoxBottom. 

> 
> I have the Darvas DLL in my plug-in. Now how do you activate it? 
> i.e. make it appear on a chart. I can't find instructions for doing 
> so. Maybe some kind soul.........
> 
> thanks 
> 
> Herbert


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