Re: [amibroker] Looking for Zig Zag code, prefer AFL code.

["Anthony Faragasso" <ajf1111@xxxxxxxx>]

EnableScript("jscript");

 

<%

Reversal = 0.2;

function FillLine( startbar, startval, endbar, endval )

{

for( j = startbar; j <= endbar; j++ )

{

ZigArray[ j ] = startval + ( j - startbar) * (endval-startval)/( endbar -

startbar );

}

}

 

High = VBArray( AFL("High") ).toArray();

Low = VBArray( AFL("Low" ) ).toArray();

ZigArray = Low;

Maximum = High[ 0 ];

Minimum = Low[ 0 ];

MinBar = 0;

MaxBar = 0;

startbar = 0;

if( High[ 1 ] > High[ 0 ] )

{

dir = 1;

Extremum = Low[ 0 ];

}

else

{

dir = -1;

Extremum = High[ 0 ];

}

ExBar = 0;

for( i = 1; i < High.length; i++ )

{

if( High[ i ] > Maximum )

{

Maximum = High[ i ];

MaxBar = i;

}

if( Low[ i ] < Minimum )

{

Minimum = Low[ i ];

MinBar = i;

}

if( dir == 1 && ( Minimum < (1- Reversal ) * Maximum ) )

{

FillLine( ExBar, Extremum, MaxBar, Maximum );

Extremum = Maximum;

ExBar = MaxBar;

Maximum = Minimum;

MaxBar = MinBar;

dir = -1;

}

if( dir == -1 && ( Maximum > (1+ Reversal ) * Minimum ) )

{

FillLine( ExBar, Extremum, MinBar, Minimum );

Extremum = Minimum;

ExBar = MinBar;

Minimum = Maximum;

MinBar = MaxBar;

dir = 1;

}

 

}

AFL("graph0") = ZigArray;

%>

Graph1 = Close;

Graph1Style = 64;

----- Original Message -----

From: tintin92

To: amibroker@xxxxxxxxxxxxxxx

Sent: Wednesday, December 22, 2004 6:58 AM

Subject: Re: [amibroker] Looking for Zig Zag code, prefer AFL code.

Hi Graham,


>
> Don't get me wrong, but the help screens are always a good place to start
> SYNTAX  zig(ARRAY, change )
> RETURNS ARRAY
> FUNCTION  Calculates the minimum % change Zig Zag indicator. Caveat: this
> function is based on Zig-Zag indicator and may look into the future - this
> means that you can get unrealistic results when back testing trading
system
> using this indicator. This function is provided rather for pattern and
trend
> recognition formulas.
> EXAMPLE zig(close,5)
>


OK, I find what you talk about in the AB help file.

But, what I am looking for is full AFL code, not the ready to use indicator.
In other words, I am looking for the full AFL code of the zig indicator.

Cheers.

Tintin92


> Cheers,
> Graham
> http://e-wire.net.au/~eb_kavan/
>



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