Powerful modern math library for PHP: Features descriptive statistics and regressions; Continuous and discrete probability distributions; Linear algebra with matrices and vectors, Numerical analysis; special mathematical functions; Algebra
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Statistics\Outlier edge cases throw exceptions: Grubbs' having fewer than 3 observations; standard deviation of zero; Support upper/lower as aliases for one sided in grubbsCriticalValue.
0fa4591View on GitHubStatistics\Experiment functions throw exceptions when input outside of range.
e0b191bView on GitHubFix \Statistics\EffectSize boundary edge cases resulting in division by zero for hedgesG, cohensD, and glassDelta.
0495c07View on GitHubFix \Statistics\EffectSize cohensQ bounds check [-1, 1] and throw OutOfBoundsException when outside range, and return INF when r == 1 or -1.
0b24b23View on GitHubDistribution stemAndLeafPlot throws an exception if there are negative values.
e740ee0View on GitHub