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39 commits

Author SHA1 Message Date
Miroslav Lichvar
c9f50fc686 update copyright years 2017-08-28 14:38:23 +02:00
Miroslav Lichvar
f6e72a80e1 regress: avoid undefined behavior in pointer arithmetic 2017-07-21 17:14:15 +02:00
Miroslav Lichvar
6207655ab2 regress: provide function to find median 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
5e1e31ad5f regress: reduce maximum number of points to 64 
This corresponds to the maximum number of points used by regress users.
 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
13111c1dd8 regress: use chars instead of ints for flags 
This reduces the size of the flags array on stack.
 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
85c84073c1 regress: fix assertion in robust regression 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
c2944d8727 regress: speed up range expansion in robust regression 
Instead of repeatedly expanding the range of b with the same increment,
double the range on each iteration to speed up the expansion. Also, add
a sanity check for the interval.
 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
e118b9b1e8 regress: fix robust regression 
The bisection always terminated after one iteration. Change the code to
check if the middle is different from the lower and upper limits as
suggested in the original recipe.

This fixes commit b14689d59b.
 2017-06-27 15:29:01 +02:00
Miroslav Lichvar
a4e3f83611 update copyright years 2017-01-24 15:01:38 +01:00
Miroslav Lichvar
53b661b59d regress: remove unused struct declaration 2016-12-02 14:53:03 +01:00
Miroslav Lichvar
27d59e54cc regress: add linear regression with two independent variables 2016-08-11 10:45:48 +02:00
Miroslav Lichvar
f7b8cd1a09 regress: save arrays of constants in single-precision 
No need to waste space on double precision. Also, declare them as const.
 2016-08-11 10:45:48 +02:00
Miroslav Lichvar
75efa5174c Convert disabled log messages to debug or remove them 2014-06-27 10:17:35 +02:00
Miroslav Lichvar
ae104b5c28 regress: make minimum number of samples for regression public 2014-04-10 17:15:13 +02:00
Miroslav Lichvar
726cf84e19 Check array index before reading 2014-02-04 16:02:21 +01:00
Miroslav Lichvar
7261d11bb0 Add assert for parameter m in RGR_FindBestRegression() 2013-10-10 16:37:40 +02:00
Miroslav Lichvar
3d1be1cd75 Replace bzero with memset 2013-06-14 13:48:16 +02:00
Miroslav Lichvar
6ca73bf670 Cleanup including of system headers 2013-06-14 13:41:16 +02:00
Miroslav Lichvar
6d2fb9f782 Add minsamples and maxsamples directives 
Allow configuration of the maximum and minimum number of samples per
source.
 2013-06-13 16:23:32 +02:00
Miroslav Lichvar
359d444343 Remove unncessary return statements 2013-05-21 15:08:34 +02:00
Miroslav Lichvar
b14689d59b Fix crash and hangs in RGR_FindBestRobustRegression 2012-11-29 16:23:22 +01:00
Miroslav Lichvar
b485051b65 Fix reported number of runs to correspond to reported number of samples 2011-11-28 11:19:48 +01:00
Miroslav Lichvar
da2c8d9076 Use config.h 2011-05-24 18:07:06 +02:00
Miroslav Lichvar
66c7ac4d24 Revert using unweighted variance in weight calculation 
This reverts commit 165e6805ab.
 2011-04-29 13:29:24 +02:00
Miroslav Lichvar
70735d8d79 Ignore extra samples in reported nruns 2011-04-18 12:36:02 +02:00
Miroslav Lichvar
165e6805ab In weight calculation use unweighted variance from last regression 
This fixes a positive feedback where weights could reach inf.
Also change the SD_TO_DIST_RATIO constant to get close to the original
response.
 2011-04-13 18:43:25 +02:00
Miroslav Lichvar
e8c5d15690 Remove CVS headers 2011-01-28 12:56:09 +01:00
Miroslav Lichvar
e63cba05b2 Update copyright 2011-01-27 13:05:26 +01:00
Miroslav Lichvar
5344028c40 Use 5% critical region for number of runs 
This results in more samples used in regression and slightly improved
response with high jitters.
 2010-08-17 17:52:19 +02:00
Miroslav Lichvar
e591e3622b Extend runs test 
Double the number of samples that are used in the runs test. E.g. with 64
samples in regression the runs test will be tried over the 64 samples and
up to 64 previous samples. The minimum number of samples in now 4.

This improves the response with low-mid jitters by about 50%.
 2010-08-17 16:40:25 +02:00
Miroslav Lichvar
6b0198c2d7 Replace all CROAK calls with assert or LOG_FATAL 
Remove croak() and use assert() or LOG_FATAL() everywhere. Hopefully
the problems with debugging mentioned in the croak() comment are long gone.
 2010-08-12 14:30:05 +02:00
Miroslav Lichvar
2a64b75893 Regenerate critical values for number of runs 
Generate more values to allow regression with 128 samples. Possibly a
different approach was used to generate the values, or the previous table
was actually using 11% critical region and had an extra value in the
12th place.
 2010-08-11 18:50:23 +02:00
Miroslav Lichvar
034e172033 Assert number of points in regress functions 2010-08-11 18:25:32 +02:00
Miroslav Lichvar
3b4e4b785d Change length of resid buffer to MAX_POINTS 2010-08-06 14:51:37 +02:00
Miroslav Lichvar
b9b0326d15 Reduce noise in refclock sample dispersions 
Use the estimated dispersion only if it's higher than long-term average.
This should improve performance with short polling intervals.
 2010-03-02 14:23:50 +01:00
Miroslav Lichvar
4097ab29c7 Don't read past buffer in find_ordered_entry_with_flags 2009-11-18 15:46:55 +01:00
Miroslav Lichvar
8e23110aec Update COPYING and FSF address 2009-10-28 17:53:33 +01:00
richard
6672f045c2 Update copyright to 2003 2006-01-19 21:37:13 +00:00
Richard P. Curnow
8884034104 Equivalent to V1.19.99.1 
This is a verbatim copy of the files at that stage of the repository that was
built from the CVS import.  It allows future development to see a bit of recent
history, but without carrying around the baggage going back to 1997.  If that
is really required, git grafts can be used.
 2006-01-19 21:34:28 +00:00