Re: Off topic: Why a 2 in smoothing factor of XAverage?

[Jack Griffin <jack_2231@xxxxxxxxx>]

--- Lawrence Chan <stnahc@xxxxxxxx> wrote:
...
> OK - why Length + 1?
> 
> In the time of SystemWriter the length can be 0.
> plug the length 0 in and you will have a good time
> :)
> 
> The guy who wrote xaverage figured a base case of 0
> is important to make the definition complete, 
> thats all. Thus the definition used in TS is wrong
> :)
> 
> When Length is huge and if it is not
> single-precision,
> it does not matter.
> 
> -Lawrence
> 

That explains the +1, though you have to admit it
would be better to simple give zero, an error, or C
when idiots ask for a zero-length m.a.   

Still no good explanation as the factor of 2 though.

Thanks for the story!

Cheers,
Jack