Revision history for Perl extension Statistics::Descriptive.

3.0609      2015-06-19
    - Update some old URLs and addresses.

3.0608      2015-01-14
    - Apply patch to speed up skewness calculations.
        - https://rt.cpan.org/Public/Bug/Display.html?id=101422
        - Thanks to Shawn (SLAFFAN).

3.0607      2014-02-01
    - Fix the List::MoreUtils prereqs.
        - http://www.cpantesters.org/cpan/report/365b752c-8adf-11e3-bd14-e3bee4621ba3
        - Thanks to Chris Williams (BINGOS) for the CPAN Testers Report.

3.0606      2014-01-31
    - Implement the median_absolute_deviation method.
        - https://bitbucket.org/shlomif/perl-statistics-descriptive/pull-request/5/median-absolute-deviation-method/diff
        - Thanks to Kang-min Liu.
    - Minimal version of perl set to 5.6.0 (CPANTS).
    - Add standalone LICENSE file (CPANTS).

3.0605      2013-05-21
    - Add t/style-trailing-space.t .
    - Add t/cpan-changes.t .
        - Convert Changes to it.

3.0604      2012-07-14
    - Correct a misspelling of "weight" in
    lib/Statistics/Descriptive/Smoother/Weightedexponential.pm
        - Thanks to Wilhelm for the report.
    - Update the scripts/tag-release.pl file for Mercurial.

3.0603      2012-05-15
    - Use in_between to compare decimal numbers
        - Smoothing tests were failing because of rounding problems
        - Thanks to Andreas J. König for reporting it and to
          Fabio Ponciroli for fixing it.

3.0602      2012-05-12
    - Correct a typo:
        - https://rt.cpan.org/Ticket/Display.html?id=77145
        - Thanks to Salvatore Bonaccorso and the Debian Perl Group
        for the report.

3.0601      2012-05-11
    - No longer using Test::Exception in the tests.
        - It was used by the tests and not specified in
        test_requires/build_requires.
        - Thanks to hsk@fli-leibniz.de for the report.

3.0600      2012-05-11
    - Add the smoothing functionality.
        - Add the following public methods: add_data_with_samples(),
        set_smoother(), get_smoothed_data() to the main module.
        - Add the lib/Statistics/Descriptive/Smoother.pm and
        lib/Statistics/Descriptive/Smoother/Exponential.pm
        lib/Statistics/Descriptive/Smoother/Weightedexponential.pm
        modules.
        - Thanks to Fabio Ponciroli
    - Add the scripts/bump-version-number.pl to facilitate bumping the
    version number.

3.0500      2012-05-03
    - Add the get_data_without_outliers() and the set_outlier_filter()
    methods.
        - See https://bitbucket.org/barbasa/perl-statistics-descriptive/overview
        - Thanks to Fabio Ponciroli

3.0400      2012-03-01
    - Fix https://rt.cpan.org/Ticket/Display.html?id=74890
        - some function should return undef() in list context so they can
        be easily assigned to values in hash initialisations.
        - thanks to SLAFFAN for a preliminary patch which was modified
        by SHLOMIF (the current Statistics-Descriptive maintainer).

3.0300      2012-02-11
    - Now mean() and median() and other routines return undef() if there are
    no data.
    - Somewhat incompatible change: some methods that returned undef() under
    list context now return an empty list (so it will be false).
        - it is generally not recommended to call such methods in list context
        as they should always be called in scalar context.
    - Resolves https://rt.cpan.org/Ticket/Display.html?id=74693
        - thanks to Shawn Laffan for the report and the patch.

3.0203      2011-11-17
    - Fix https://rt.cpan.org/Ticket/Display.html?id=72495 .
        - percentile should not die and should return undef if there are
        no elements in the collection.

3.0202      2011-07-23
    - Moved tag-release.pl to scripts/tag-release.pl (though we now use
    Mercurial instead of Subversion.)
    - Add t/mode.t to test the ->mode() method.
    - Documented ->mode() better.
    - Optimized ->mode().

3.0201      2010-10-14
    - Add some documentation clarifying the 0th percentile return, as it
    returns undef() for representing -inf:
        - Fix https://rt.cpan.org/Ticket/Display.html?id=62055
        - Thanks to Dave Breimann for reporting it.
    - Add the tag-release.pl to tag a release using Subversion.

3.0200      2010-06-18
    - Added skewness and kurtosis
        - https://rt.cpan.org/Ticket/Display.html?id=58187
        - Thanks to Shawn Laffan.
    - Removed the Changes / Revision log from the .pm file.

3.0102      2010-06-15
    - Add the $VERSION variable to Statistics::Descriptive::Sparse and
    Statistics::Descriptive::Full. This was done to silence the CPAN indexer.

3.0101      2010-06-15
    - Moved the trimmed_mean caching test (that used the Benchmark.pm module)
    to rejects/descr.t , because it kept failing.

3.0100      2009-07-20
    - Added the quantile method - thanks to Djibril Ousmanou (DJIBEL).
        - https://rt.cpan.org/Ticket/Display.html?id=47948

3.0000      2009-05-29
    - Added tests (for ->count, ->sum, ->sumsq, ->min, ->max)
    - Localized the scope of $stat and other variables in t/descr.t
    - Got rid of AUTOLOAD in favour of individual accessors.
    - Converted many direct member accesses to the accessors.
    - Added ->frequency_distribution_ref() which deprecates
      frequency_distribution().
    - Some refactoring of the lib/Statistics/Descriptive.pm module
    (without breaking the documented API).

2.9         2009-05-13

    - Fixed bug https://rt.cpan.org/Public/Bug/Display.html?id=46026 :
        - standard_deviation failing due to a variance that got evaluated
        to 0 due to rounding errors.
    - Kwalitee : added a LICENSE section to the POD.
    - Kwalitee (CPANTS) : added an examples/ directory with a script.

2.8         2009-05-09

    - Enabled "./Build runtest" and "./Build distruntest" (using Test::Run)
    in the distribution.

    - Fixed incomplete/broken tests in t/descr.t.

2.7         2009-05-03

    - Converted the distribution to Build.PL and re-organized it to
    put everything under its proper place. Started maintaining it in:
        - [Old SVN Repository] - URL Elided.

    - Converted t/descr.t to use "use strict;" and "use warnings;".

    - Converted t/descr.t to use Test::More.

    - Cleaned up the "use" statement of lib/Statistics/Descriptive.pm.

    - Added more explicit dependencies (core, though) to Build.PL.

    - Fixed RT bug #34999: freq distribution generated too many bins.
        - https://rt.cpan.org/Ticket/Display.html?id=34999

    - Added some keywords and resources to the META.yml, using Build.PL's
    meta_merge.

    - Fixed https://rt.cpan.org/Ticket/Display.html?id=32183
        - more authoritative (and non-broken) link to the RFC.

    - Applied the patch in https://rt.cpan.org/Ticket/Display.html?id=9160
        - {{#9160: Variance and Standard Deviation use costly pseudo-variance,
        instead of computing real variance}}.

2.6         2002-10-10
    - Fixed caching in trimmed mean and modified code to allow trimming
	  0% from upper bound.  Formerly if 0 was requested then it used the
	  lower bound!

	- POD format patch from ddunlap

2.5         1999-05-12
	- Forgot to document change in v2.4, which included fixing
	  percentile so that it worked right and added to the test
	  harness.
	- Modified frequency_distribution so that specific bins could
	  be passed in.  Fixed caching so that it actually works
	  (it only used to get stuck returning the result of the
	  first call).
	- Turned off caching for least_squares_fit because there's no
	  way to generate a unique key for memorization.

2.3         1998-11-12
	- Fix for frequency distribution.
	  Changed Makefile.PL to ease ActiveState distribution of the module.
	  Andrea's code for preventing division by zero and other
	  improvements.  He also wrote a great test bench.
	  Added code from Warren Matthews to calculate percentile.

2.2         1998-02-23
	- Multiple bug fixes:
	  Fixed min/max bug with '0' vs defined.
	  Provided fix for bug with AUTOLOAD/DESTROY/Carp problem.

2.1         1997-09-02
	- Multiple bug fixes:
	  Cleaned up syntax error with my scoping.
	  Fixed errors in least_squares_fit and median methods

2.00        1997-08-20
	- new version; created by h2xs 1.16
	- Complete rewrite of OO interface by Colin Kuskie.
	- Now has 2 classes instead of 1.5, a base class without data
	  storage and a class that inherits the base methods and
	  extends them with data storage and more statistics.

1.1         1995-04-01
        - Added LeastSquaresFit and FrequencyDistribution.

1.0         1995-03-01
        - Released to comp.lang.perl and placed on archive sites.

0.20        1994-12-01
        - Complete rewrite after extensive and invaluable e-mail
          correspondence with Anno Siegel.

0.10        1994-12-01
        - Initital concept, released to perl5-porters list.
	- Jason Kastner <jkastner@tuba.aix.calpoly.edu>
