[amibroker] Re: On Balance Volume (need raw code)

["Diane" <brianrichard99@xxxxxxxxxxx>]

Thank you Tomasz (and everyone else who responded)!

I added trend lines (use the "parameter" setting to test various 
trendlines) and also moving averages to the OBV --

// OBV with Trendlines (use "Param")  and 10/50 Moving Averages

rawOBV = Cum( Volume * sign( C - Ref( C, -1 ) ) ) + Volume[ 0 ];

// Buy Support Line
x = Cum(1);
VarPerc = Param("VarPerc",0.3,0.01,2.0,0.01); // default 0.3
perchg = VarPerc*LastValue( Highest( ROC( rawOBV, 50 ) ));
startvalue = LastValue( Trough( rawOBV, perchg, 1 ) );
endvalue1 = LastValue( Trough( rawOBV, perchg, 2 ) );
startbar = LastValue( ValueWhen( rawOBV== startvalue, x, 1 ) );
endbar = LastValue( ValueWhen( rawOBV== endvalue1, x, 1 ) );
Aa = (endvalue1-startvalue)/(endbar-startbar);
b = startvalue;
trendline = Aa * ( x  - startbar ) + b; 

// Short Resistance Line
y = Cum(1);
Bperchg = VarPerc*LastValue( Highest( ROC( rawOBV, 50 ) ));
Bstartvalue = LastValue( Peak( rawOBV, Bperchg, 1 ) );
Bendvalue1 = LastValue( Peak( rawOBV, Bperchg, 2 ) );
Bstartbar = LastValue( ValueWhen( rawOBV== Bstartvalue, y, 1 ) );
Bendbar = LastValue( ValueWhen( rawOBV== Bendvalue1, y, 1 ) );
BAa = (Bendvalue1-Bstartvalue)/(Bendbar-Bstartbar);
Bb = Bstartvalue;
Btrendline = BAa * ( y  - Bstartbar ) + Bb; 

// Plot Colored Lines
Plot(rawOBV, "rawOBV",colorBlack,styleThick);

Plot( IIf( x >= endbar, trendline, Null ), "Trendline", colorYellow, 
styleDots );
Plot( IIf( y >= Bendbar, Btrendline, Null ), "Trendline", colorBlue, 
styleDots );

Plot(MA(rawOBV,10),"MA10",colorRed,styleLine);
Plot(MA(rawOBV,50),"MA50",colorBlue,styleLine);


Enjoy Vancouver, Tomasz -- GREAT CITY!!! Make sure to check out the 
west coast of Vancouver Island... beautiful.

~Bman

--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx> 
wrote:
>  
> Plot( OBV(), "OBV built-in", colorRed ); 
> 
> rawOBV = Cum( Volume * sign( C - Ref( C, -1 ) ) ) + Volume[ 0 ]; 
> 
> Plot( rawOBV, "rawOBV", colorBlue ); 
> 
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message ----- 
> From: "Diane" <brianrichard99@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, October 05, 2005 4:49 AM
> Subject: [amibroker] On Balance Volume (need raw code)
> 
> 
> >I know AB includes OBV within it, but I'm looking for the base 
code 
> > written in AFL, so I can tweak it and add trend lines.
> > 
> > Anyone have anything they can throw at me?
> > 
> > Thanks in advance!
> > 
> > Bman
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > Please note that this group is for discussion between users only.
> > 
> > To get support from AmiBroker please send an e-mail directly to 
> > SUPPORT {at} amibroker.com
> > 
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> > 
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> >





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