The Apache Commons Team is pleased to announce the availability of
version 1.1 of "Apache Commons Statistics".
Apache Commons Statistics provides tools for statistics.
Changes in this version include new descriptive, inference, ranking
and bom modules:
New features:
o STATISTICS-88: "LogUniformDistribution": Add a log uniform distribution.
o STATISTICS-87: "FoldedNormalDistribution": Add a folded normal
distribution implementation with
specialized support for a half-normal distribution.
o STATISTICS-85: Add a quantile and median implementation.
o STATISTICS-81: Add descriptive statistics for integer types. These
allow improved accuracy and
performance for int and long data using an array or
streams over using the
equivalent double implementation via primitive conversion.
o STATISTICS-71: Add commons-statistics-descriptive module for
implementations of univariate
statistics. Contains base interfaces for statistics
and implementations for
individual statistics (e.g. Min, Max, Sum, Mean,
Variance) and combinations of
statistics. Thanks to Anirudh Joshi, Alex Herbert.
o STATISTICS-69: "UncoditionedExactTest": Add an unconditioned exact
test for 2x2 contingency
tables.
o STATISTICS-70: "HypergeometricDistribution": Improve the summation
used for the cumulative
probability functions.
o STATISTICS-66: Add a Bill of Materials (BOM) to aid in dependency
management when referencing
multiple Apache Commons Statistics artifacts. The
BOM should be used to ensure
all imported artifacts are compatible.
o STATISTICS-64: "FisherExactTest": Add Fisher's exact test for 2x2
contingency tables.
o STATISTICS-62: Add a commons-statistics-inference module for
hypothesis testing. This ports and
updates functionality in
org.apache.commons.math4.stat.inference including new
support for one-sided hypothesis testing.
o STATISTICS-63: Add a commons-statistics-ranking module for rank
transformations. This ports and
updates functionality in
org.apache.commons.math4.stat.ranking.
Historical list of changes:
https://commons.apache.org/proper/commons-statistics/changes-report.html
For complete information on Apache Commons Statistics, including
instructions on how
to submit bug reports, patches, or suggestions for improvement, see the
Apache Commons Statistics website:
https://commons.apache.org/proper/commons-statistics/
Distribution packages can be downloaded from
http://commons.apache.org/proper/commons-statistics/download_statistics.cgi
When downloading, please verify signatures using the KEYS file
available at
https://downloads.apache.org/commons/KEYS
The Apache Commons Team
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