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aspdeveloper 2007.02.13 17:40 

Hi there,

How can I get the angle of a moving average which is plotted on a chart?

For example: I have 2 to 3 moving averages plotted on my charts. Based on the angle (f.e. 60 degrees) I have an indicator on how strong the current uptrend is.

Should I calculate the angle myself, based on the MA-values of the f.e. last 10 candles, or should I use the ObjectGet()-function? I tried the latter, but you have to specify a name, and since all my MA's have the same name (and I don't see how I can change them), there's nothing coming out ... (they're actually the same MA's, but based on close, high and low prices).

Any help would be very much appreciated! Thanks in advance.

Greetingz,
Koen.

JosTheelen 2007.02.13 19:42 

The angle depends on how much time you have on the horizontal axis. Suppose your chart shows 2 days and you changes that to 1 day, the angle will become smaller. So I suggest you don't use an angle, but something like "average difference in pips per timeframe". That means: take the difference in value from MA1 and MA2 and divide it by the number of timeframes between the moment the MA's intersected and the moment you want the angle.

Rosh 2007.02.14 11:05 

You cannot measure a corner of an inclination of a straight line on the schedule because have different units - the Price and Time. It is possible to measure only similar with similar (like to like). In this case you try to measure a corner of an inclination of a straight line on the schedule, expressed through pixels. You can is authentic measure only speed of change of the price in terms of Point unit for a Time unit.

wheel_of_fire 2007.04.05 17:38 

DxdCn,

I completely agree with you. Angles matter and they are used all the time.

I'm interested in the formula you posted. I've been getting the angle with the following formula:

(((MathArctan(line_slope/100))*(180/3.14159))*angle_factor);

Slope is calculated in another function. Angle_factor controls for the format of the yen. Anyway, it gets close but it's still not right.

When I put your formula instead, I get a divide by zero error in the strategy tester. Is this because the window functions don't work within the tester or did I do something wrong?

Peace.

wheel_of_fire 2007.04.05 17:56 

Thanks, Rosh.

DxdCn 2007.04.06 10:52 

Note : based on screen pixels !!! dx,dy should be in same unit,best trans to screen pixels.

MathArctan(MathTan(
((price1-price2)/(WindowPriceMax()- WindowPriceMin()))
/
((shift2-shift1)/WindowBarsPerChart())
))
*180/3.14

divide by zero error ? check (shift2-shift1) should not equal ZERO before calculating.

I test them on newest version 203.
I do not test them when testing EA.