The trouble is, you don't know the center point until you get the=20
average, and need the center point to to get the average.
If you use the method I posted earlier, I believe it will work.

If (highest reading - lowest reading) > 180  // Wrap occurred
  for each reading, if reading > 180, reading =3D reading - 360  //=20
Convert to negative value

Average =3D sum of readings / number of readings


Examples:

358, 359, 1, 2
Highest - lowest (359-1) is > 180, so convert readings by subtracting 360 f=
rom each one over 180.  Results are -2, -1, 1, 2, average is 0.

178, 179, 181, 182
Highest - lowest (182-178) is < 180, so don't convert readings.  Results ar=
e 178, 179, 181, 182, average is 180.

Kerry
=20




IVP wrote:
>> What happens if the average is 180, and the readings are 178,
>> 179, 181 and 182?
>>    =20
>
> Hmmm. OK. We're into the trial-and-error stage of development ;-))
>
> I see what you mean. Results will revolve around any arbitrary
> centre point unless compensated
>
> In the example above
>
> (+ 178 + 179 - 1 -2) / 4 =3D 88.5 or
> (-2 -1 + 181 + 182) / 4 =3D 90
>
> So.......strip off the centre point to make absolute differences and
> then add it back as an offset ?
>
> The obvious answer is 180, which could be arrived at by
>
> (-2 -1 + 1 + 2) + 180
>
> Joe
>
>
>  =20

--=20
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