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Hi Alan
If Alpha:=2/(n+1) then I think you've got it.
Regards
Roy
> I think I've finally got it! If I have, then its thanks to your
> usual detailed response.
>
> I understand EMA, so the answer hit me as soon as you explained the
> EMA example. Just to verify that I now understand PREV, could you
> please confirm the following:
>
> New_EMA = alpha*NewValue + (1-alpha)*Old_EMA;
>
> is identical to
>
> New_EMA = alpha*NewValue + (1-alpha)*PREV;
>
> Regards,
> Alan
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