Re: [amibroker] AFL: Slope of a moving average (curve) v. a straight line (for ex. a trendline)

["Anthony Faragasso" <ajf1111@xxxxxxxx>]

ema1period=Param("ema1Period",4,4,9,1);

EMA2period=Param("ema2Period",9,9,20,1);

EMA3period=Param("ema3Period",20,20,28,1);

SlopePeriods=Param("SlopePeriods",10,2,25,1);

PI=3.14159;

Array=C;

Var1=EMA(array,EMA1period);

Var2=EMA(array,EMA2period);

Var3=EMA(array,EMA3period);

EMAFast=LinRegSlope(Var1,SlopePeriods);

EMAMedium=LinRegSlope(Var2,SlopePeriods);

EMASlow=LinRegSlope(Var3,SlopePeriods);

Radians=atan(EMAFast);

Radians2=atan(EMAMedium);

Radians3=atan(EMASlow);

degrees=Radians*(180/PI);

degrees2=Radians2*(180/PI);

degrees3=Radians3*(180/PI);

 

Plot(Var1,"emaFast",colorRed,styleLine);

Plot(Var2,"emaMedium",colorBlue,styleLine);

Plot(Var3,"emaSlow",colorYellow,styleLine);

Plot(C,"",colorBlack,styleCandle);

Title=Name()+"..."+Date()+"\n"+"Based on ( "+WriteVal(slopeperiods,1)+" ) period LinearRegSlope of Variable "+"\n"+"The ( "+WriteVal(EMA1period,1)+ " ) period EMA is moving "+WriteIf(degrees > 0,"UP ","Down ")+"( "+WriteVal(degrees,1)+" )"+" Degrees"+"\n"+"The ( "+WriteVal(EMA2period,1)+ " ) period EMA is moving "+WriteIf(degrees2 > 0,"UP ","Down ")+"( "+WriteVal(degrees2,1)+" )"+" Degrees"+"\n"+"The ( "+WriteVal(EMA3period,1)+ " ) period EMA is moving "+WriteIf(degrees3 > 0,"UP ","Down ")+"( "+WriteVal(degrees3,1)+" )" +" Degrees";

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

From: Harold Harper

To: amibroker@xxxxxxxxxxxxxxx

Sent: Friday, July 08, 2005 10:17 AM

Subject: [amibroker] AFL: Slope of a moving average (curve) v. a straight line (for ex. a trendline)

Is it possible using AFL to calculate the slope of, for example, a
moving average? See:

http://cstl.syr.edu/fipse/GraphB/Unit8/Unit8a.html

Calculating the slope of the line tangent to the curve should be, I'm
assuming, straightfoward. I'm guessing the thornier question is how to
find the line that is tangent to a particular day or period.

Thoughts or suggestions?

Thanks.

Harold Harper
harold@xxxxxxxxxxxxx






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Please note that this group is for discussion between users only.

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SUPPORT {at} amibroker.com

For other support material please check also:
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SPONSORED LINKS

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Investment tracking software	Return on investment software	Stock investment software

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