[time-nuts] Perl program for stability analysis available
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Jan 3 06:37:50 UTC 2005
In message <41D8AE0B.9020501 at febo.com>, John Ackermann N8UR writes:
>Hi Poul-Henning --
>
>I got your program to compile under Linux after removing the reference
>to floatingpoint.h and commenting out "fpsetmask(FP_X_UFL);" at
>about line 721. I think I sussed out some of the command line options,
>but could you provide a quick usage summary, as I'm not sure I have the
>right options and/or data format -- I get ADEV results that don't make
>much sense.
This is from memory:
-R filename
read timestamp file, Ie: %d.%d second and fraction.
-r filename
read phase difference file, Ie: .%d fraction
(I may have these two swapped)
-c
Remove average
-l
Make linear regression fit.
-A filename
Calculate modified Allan variance
-a filename
Calculate Allan variance
-F filename number_buckets
FFT
-L number
attemt Linear Frequency Fit with <number> points
-o omega
time between samples. (Should be given before [-rR])
-O stddev
Remove Outlyers further than <stddev>.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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