[time-nuts] Allan Variance

[William H. Fite]

As I tell my beginning students, ask yourself if it makes more sense to
think in terms of units (inches, temperatures, whatever) or in squared
units.

Engineers aren't statisticians--and it shows!  [?]




On Tue, Mar 29, 2011 at 9:45 AM, Martyn Smith <martyn at ptsyst.com> wrote:

> Hello,
>
> The answer to my original question is that Allan Variance is not to be used
> but rather Allan deviation.
>
> However, David Allan does not mention Allan Deviation on his website, only
> Allan Variance.
>
> Also I spoke to the designer of the PRS10 and he definitely said his specs
> are
> Allan Variance.
>
> Also I looked at Wenzel and they only quote Allan Variance.
>
> Also NIST quote Allan variance and the list goes on.
>
> So I'm still confused, as it seems is everyone else.
>
> Regards
>
> Steve
>
>
>
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