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Changelog

1.0.2 - WIP

  • Fix deprecations for PHP 8.4

1.0.1 - 2024-11-21

  • Welcome PHP 8.4
  • Upgrading to Rector 1

1.0.0 - 2023-12-26

  • Fixed median() function to handle unsorted data by @keatis
  • Rector refactor
  • PHPstan level 8
  • Support for PHP 8.1 and above
  • Add support for PHP 8.2 by @AmooAti
  • Update to PestPHP v2 by @AmooAti
  • Improving documentation (readme, contributing, code of conduct, security policies) by @AbhineshJha, @Arcturus22, @tvermaashutosh, @Abhishekgupta204, @Aryan4884
  • Rector v0.18.5 by @sukuasoft
  • Introducing Pint by @sukuasoft
  • GitHub Actions: Updating actions/checkout v4

0.2.1 - 2022-02-22

  • Linear regression

0.2.0 - 2022-02-21

  • Raise Exception instead of returning null if there is no valid input. By Artem Trokhymchuk @trokhymchuk thanks for the PR #15;
  • PHPStan, level 9

0.1.7 - 2022-02-19

  • Code refactoring by @trokhymchuk
  • Clean phpdoc blocks by @trokhymchuk
  • Stat::correlation()
  • PHPStan, level 8

0.1.6 -2022-02-17

  • Stat::covariance()

0.1.5 - 2022-02-05

  • frequencyTable()
  • frequencyTableBySize()
  • code refactoring and documenting some functions by Artem Trokhymchuk @trokhymchuk thanks for the PR #2
  • add tests for Math class

0.1.4 - 2022-01-30

  • quantiles()
  • firstQuartile()
  • thirdQuartile()

0.1.3 - 2022-01-29

  • geometricMean(): geometric mean
  • harmonicMean(): harmonic mean and weighted harmonic mean

0.1.2 - 2022-01-28

  • pstdev(): Population standard deviation
  • stdev(): Sample standard deviation
  • pvariance(): variance for a population
  • variance(): variance for a sample

0.1.1 - 2022-01-27

  • Create Freq class with static method for managing frequencies table
  • Create Stat class with static methods for basci statistic functions like: mean, mode, median, multimode...
  • Refactor Statistics class in order to use logic provided by Freq and Stat class
  • Create ArrUtil with some helpers/functions to manage arrays
  • Add CICD test for PHP 8.1

Initial release - 2022-01-08

Initial release with:

  • getMean()
  • count()
  • median()
  • firstQuartile()
  • thirdQuartile()
  • mode()
  • frequencies(): a frequency is the number of times a value of the data occurs;
  • relativeFrequencies(): a relative frequency is the ratio (fraction or proportion) of the number of times a value of the data occurs in the set of all outcomes to the total number of outcomes;
  • cumulativeFrequencies(): is the accumulation of the previous relative frequencies.;
  • cumulativeRelativeFrequencies(): is the accumulation of the previous relative ratio.

0.1.0 - 2022-01-08

Initial release with:

  • getMean()
  • count()
  • median()
  • firstQuartile()
  • thirdQuartile()
  • mode()
  • frequencies(): a frequency is the number of times a value of the data occurs;
  • relativeFrequencies(): a relative frequency is the ratio (fraction or proportion) of the number of times a value of the data occurs in the set of all outcomes to the total number of outcomes;
  • cumulativeFrequencies(): is the accumulation of the previous relative frequencies.;
  • cumulativeRelativeFrequencies(): is the accumulation of the previous relative ratio.