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RE: [amibroker] Strange indicator plot scaling



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Andy,

 

It’s something to do with styleCloud.  If you replace styleCloud with styleLine in your PlotOHLC statements, your code works fine.  I’ve not used styleCloud so I don’t have any insight into why styleCloud operates differently than styleLine.

 

Regards,

 

David

 


From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Sirbrainfart
Sent: 04/11/2007 9:15 AM
To: Amibroker Yahoo Group
Subject: [amibroker] Strange indicator plot scaling

 

Grateful if someone could help me see where the code below is going funny.
Everything plots fine until you scroll left (or zoom out) to the extreme
left-hand, i.e. the first bar. When I do this the indicator scaling goes
AWOL and I just end up with a straight line due to the plot creating
huge numbers. Can't see why for the life of me...and I don't see the
problem with indicators that are constructed in a similar way.
Can anyone replicate my problem? Or better still, fix it!
TIA
Andy

//----------------------------------------------------------//
function StochMom(array, periods, smoothpds, smoothpds2)
{
mid = ( HHV(H,periods) + LLV(L,periods) )/2 ;
diff = HHV(H,periods) - LLV(L,periods) ;
alpha = 2 / (smoothpds+1);
alpha2 = 2 / (smoothpds2+1);
X1 = AMA(array-mid, alpha);
X2 = AMA(X1, alpha2);
X3 = AMA(diff,alpha);
X4 = AMA(X3,alpha2)/2;
return Min(1,(X2/X4))*100 ;
}

Param1 = ParamToggle("Price Field","Close|(H+L)/2",0);
Price = IIf(Param1==0,C,(H+L)/2);

//Stochastics
LongK = StochMom(Price,21,10,3);
LongD = EMA(LongK,4);
ShortK = StochMom(Price,7,3,3);
ShortD = EMA(ShortK,3);

//Colour Arrays
LongColour = IIf(LongK>LongD,colorGreen,colorRed);
ShortColour = IIf(ShortK>ShortD,colorBlue,colorOrange);

PlotOHLC(LongK,LongK,LongD,LongK,"",LongColour,styleCloud);
PlotOHLC(ShortK,ShortK,ShortD,ShortK,"",ShortColour,styleCloud);
Plot(50,"",colorGrey50,styleDashed|styleNoLabel);
Plot(60,"",colorGrey50,styleDashed|styleNoLabel);
Plot(-60,"",colorGrey50,styleDashed|styleNoLabel);
Plot(-50,"",colorGrey50,styleDashed|styleNoLabel);
//----------------------------------------------------------//

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