[time-nuts] time-nuts Digest, Vol 198, Issue 31

[Demetrios Matsakis]

Magnus,

Every time I read one of your posts, I know I will learn something.  Thank you so much for correcting the mis-information I had spread!

Demetrios, who isn’t done making mistakes.

> On Jan 23, 2021, at 12:00 PM, time-nuts-request at lists.febo.com wrote:
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> Today's Topics:
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>   1. Re: irregular data and Stable32 (Magnus Danielson)
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> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 22 Jan 2021 18:57:00 +0100
> From: Magnus Danielson <magnus at rubidium.se>
> To: time-nuts at lists.febo.com
> Subject: Re: [time-nuts] irregular data and Stable32
> Message-ID: <97c0ea02-bde6-f83c-11a9-c86a7f42b491 at rubidium.se>
> Content-Type: text/plain; charset=utf-8
> 
> Dear Demetrios,
> 
> On 2021-01-20 20:02, Demetrios Matsakis via time-nuts wrote:
>> I think I deleted the duplicate posts relevant to data gaps in deviation statistics, and apologize if I took anybody?s out.
>> 
>> In my personal software I don?t deal with outliers or data gaps by interpolating, spline-fitting, or any other fancier things.    Instead I compute the standard statistical measures by simply ignoring terms in the summation that hit upon a data gap or outlier. 
>> 
>> I don?t think Stable32 does that, so I?d like to pose this challenge to anyone interested in serving the community:  Assuming IEEE will make the source code available, can the approach I use be made an option?    And yes, I know that the uncertainties of the deviation points get hard to compute, but such issues can be warned about in the documentation, if not addressed.
> 
> Stable32 already does this. This is documented in "Handbook of Frequency
> Stability Analysis" by W.J. Riley of Hamilton Technical Services, of
> which essentially the same content is available as NIST SP 1065. In
> addition, you also find it documented in "User manual, Stable32
> Frequency Stability Analysis" of Hamilton Technical Services. A quick
> look into the source code confirms this.
> 
> License-wise, most part of the code was already provided under a
> MIT-style license, it has just not been generally released. We should
> work to make it available, but there is a few loops to jump through to
> ensure it gets done right.
> 
> Cheers,
> Magnus
> 
> 
> 
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> End of time-nuts Digest, Vol 198, Issue 31
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