Re: [amibroker] roc of macd

["Tomasz Janeczko" <groups@xxxxxxxxxxxxx>]

It functions properly but of course ROC requires POSITIVE period parameter (you specified negative).

roc(macd(12,24),-3); // WRONG

roc(macd(12,24),3); // correct

Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message ----- 
From: "trikerito" <trikero@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, February 04, 2008 4:54 PM
Subject: [amibroker] roc of macd


Hi.

it seems that roc of a macd() like roc(macd(12,24),-3) doesnt
function properly.

allways plot a flat line whith litle "sparks", but no correctily.

also i've tried

P = ParamField( "Price field" );
periods = Param("Periods", 15, 1, 200, 1 );
k=Ref (MACD(5,13),-3);
j=MACD (5,13);
r= (k-j)/k;


//Plot( ROC( P, periods,absmode=True), _DEFAULT_NAME(), ParamColor
( "Color", colorCycle ), ParamStyle("Style")  );
//Plot( r, _DEFAULT_NAME(), ParamColor( "Color", colorCycle ),
ParamStyle("Style")  );
Plot( j, _DEFAULT_NAME(), ParamColor( "Color", colorCycle ),
ParamStyle("Style")  );
Plot( k, _DEFAULT_NAME(), ParamColor( "Color", colorCycle ),
ParamStyle("Style")  );

so
 k and j are ploted ok, but r (calculated roc) is the same than
original roc(macd,-3), a flat line with "needles", but nothing
similar than a roc of a EMA or other indicators.

a math bug of ami¿? ¿?something i wrote wrong¿? ¿?any soolution¿?

tia.






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