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Apache Commons Statistics Distribution ™
  • Last Published: 17 Sep 2025
  • |
  • Version: 1.2

JIRA Report

Fix Version Key Component Summary Type Resolution Status
1.1 STATISTICS-70 distribution Improve the CDF of the Hypergeometric distribution Improvement Implemented Closed
1.1 STATISTICS-88 distribution Add an implementation of the log uniform distribution New Feature Implemented Closed
1.1 STATISTICS-87 distribution Folded normal distribution New Feature Implemented Closed
1.1 STATISTICS-60 distribution Update Pareto distribution sampler to use Commons RNG 1.6 Task Implemented Closed
1.0 STATISTICS-35 distribution PoissonDistribution cannot create a sampler with a mean above 2^30 Bug Fixed Closed
1.0 STATISTICS-25 distribution T Distribution Inverse Cumulative Probability Function gives the Wrong Answer Bug Fixed Closed
1.0 STATISTICS-23 distribution Parameter names in "GammaDistribution" Bug Fixed Closed
1.0 STATISTICS-21 distribution Probability density to return 0 wen outside support Bug Fixed Closed
1.0 STATISTICS-59 distribution Correct Pareto distribution sampling with extreme shape parameter Improvement Implemented Closed
1.0 STATISTICS-52 distribution High precision PDF for the Normal distribution Improvement Implemented Closed
1.0 STATISTICS-48 distribution Remove isSupportConnected from the distribution interfaces Improvement Implemented Closed
1.0 STATISTICS-47 distribution Add an inverse for the SurvivalProbability Improvement Implemented Closed
1.0 STATISTICS-46 distribution TruncatedNormalDistribution Improvement Implemented Closed
1.0 STATISTICS-41 distribution Use factory constructors Improvement Implemented Closed
1.0 STATISTICS-40 distribution Better probability(x0, x1) function to use the survival probability Improvement Implemented Closed
1.0 STATISTICS-39 distribution Correct the switch of function evaluation in the GammaDistribution Improvement Fixed Closed
1.0 STATISTICS-38 distribution Optimise use of the Gamma function in the PoissonDistribution Improvement Implemented Closed
1.0 STATISTICS-37 distribution Better inverse Erfc function for the Normal distribution Improvement Implemented Closed
1.0 STATISTICS-36 distribution Optimise the default inverse CDF function for continuous distributions Improvement Fixed Closed
1.0 STATISTICS-34 distribution Geometric distribution to switch PMF computation for increased accuracy Improvement Fixed Closed
1.0 STATISTICS-33 distribution Remove the utility function to create an array of samples from a Sampler Improvement Implemented Closed
1.0 STATISTICS-57 distribution Add a trapezoidal distribution New Feature Implemented Closed
1.0 STATISTICS-56 distribution Add stream functions to the Sampler interfaces New Feature Implemented Closed
1.0 STATISTICS-55 distribution TruncatedNormalDistribution sampler New Feature Implemented Closed
1.0 STATISTICS-32 distribution Add survival probability function to discrete distributions New Feature Implemented Closed
1.0 STATISTICS-31 distribution Add survival probability function to continuous distributions New Feature Implemented Closed
1.0 STATISTICS-27 distribution Truncated Normal Distribution New Feature Implemented Closed
1.0 STATISTICS-9 distribution, examples Code for creating plots (userguide) Task Implemented Closed

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