> The problem is the discontinuity in the number system being 
> used. Creating a continuous wrap around number system 
> representing the compass as 0 to 179 180 -179 to -1 makes all 
> of the averaging problems go away. Conversion of negative 
> numbers requires a simple add of 360.

So which formula would you use to calculate the average? Simple
sum(Xi)/N does not work: take 170 and -170, sum = 0, average would be 0,
correct answer is 180.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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