ntpq peers formatting needs floating point for time slots.

[Gary E. Miller]

Yo Achim!

On Tue, 07 Feb 2017 20:56:36 +0100
Achim Gratz <Stromeko at nexgo.de> wrote:

> Hal Murray writes:
> > Looks like we are getting into the old precision vs accuracy tangle.
> > Do we have a glossary with useful descriptions?
> > That slot should represent the number of useful bits.  
> 
> It really doesn't help that precision, accuracy and resolution have a
> number of different meanings depending on the context.  It is doubly
> unfortunate that NTP necessarily uses several of these contexts.

+1

> In measurement statistics, precision describes the variability of the
> distribution of many repeated measurements of the same quantity and
> accuracy the deviation of the location parameter on that statistic to
> the "ground truth" (or more commonly to another measurement that ius
> known to have higher precision and accuracy).  It is generally assumed
> that the measurement process has much higher resolution than the
> precision of the measurement and the measurement distribution can be
> assumed to be continous.  Resolution in this context is the smallest
> change in the measured quantity that will yield a discernible change
> of the measured value.

I think you are assuming way too much.  For example, on the RasPi the
resolution is worse than the accurcay of the GPS.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588

	    Veritas liberabit vos. -- Quid est veritas?
    "If you can’t measure it, you can’t improve it." - Lord Kelvin
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