2004-09-19 22:48:03 +00:00
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<?xml version="1.0"?>
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<!--
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2006-11-29 07:06:35 +00:00
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Licensed to the Apache Software Foundation (ASF) under one or more
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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2004-09-19 22:48:03 +00:00
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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<!--
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This file is used by the maven-changes-plugin to generate the release notes.
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Useful ways of finding items to add to this file are:
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1. Add items when you fix a bug or add a feature (this makes the
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release process easy :-).
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2. Do a bugzilla search for tickets closed since the previous release.
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3. Use the report generated by the maven-changelog-plugin to see all
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-->
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<document>
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<properties>
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2005-06-26 19:26:00 +00:00
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<title>
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Commons Math Release Notes</title>
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2004-09-19 22:48:03 +00:00
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</properties>
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<body>
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2005-12-22 21:16:32 +00:00
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<release version="1.2-SNAPSHOT" date="TBD">
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2007-08-16 20:36:33 +00:00
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<action dev="luc" type="fix">
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Fixed numerous warnings in test code.
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</action>
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2007-05-08 18:16:52 +00:00
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<action dev="luc" type="fix" issue="MATH-156" due-to="Tyler Ward">
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Use the initial guess provided by the user in BrentSolver.solve(), thus
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improving speed.
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</action>
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2007-08-16 20:36:33 +00:00
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<action dev="luc" type="add">
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2007-03-13 20:26:49 +00:00
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Added the estimation optimization, geometry and ode package from the
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Mantissa library.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-18" due-to="Phil Steitz">
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2006-01-03 16:47:38 +00:00
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Made ComplexFormat format double values with a provided NumberFormat
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instance instead of using the real part format for all values.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="update" issue="MATH-120" due-to="Todd C. Parnell">
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2006-02-26 16:14:03 +00:00
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Added Pascal distribution implementation.
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</action>
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2006-06-05 01:28:04 +00:00
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<action dev="psteitz" type="update" issue="MATH-148" due-to="Joni Salonen">
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Added QR Decomposition.
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</action>
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2006-06-05 03:06:52 +00:00
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<action dev="psteitz" type="fix" issue="MATH-60" due-to="Nhung Nnguyen">
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Modified ProperFractionFormat to reject embedded minus signs.
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</action>
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2006-07-04 08:09:25 +00:00
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<action dev="psteitz" type="fix" issue="MATH-151" due-to="Luc Maisonobe">
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Added a nextAfter method in MathUtils to return the next
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machine-representable number in a specified direction from a given
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floating point number. Used this to ensure that MathUtils.round does
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not return incorrect results for numbers with bad IEEE754
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representations.
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</action>
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2006-07-06 04:47:23 +00:00
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<action dev="psteitz" type="update" issue="MATH-140" due-to="Xiaogang Zhang">
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2006-07-04 20:58:54 +00:00
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Added Fast Fourier Transform implementation.
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</action>
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2006-07-06 05:10:49 +00:00
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<action dev="psteitz" type="fix" issue="MATH-85" due-to="Mark Osborn, Luc Maisonobe">
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Modified getSumSquaredErrors method in SimpleRegression to always
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return a non-negative result.
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</action>
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2007-04-05 15:19:57 +00:00
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<action dev="brentworden" type="fix" issue="MATH-153" due-to="Remi Arntzen">
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Corrected nextInt and nextLong to handle wide value ranges.
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</action>
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2007-06-20 22:24:04 +00:00
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<action dev="psteitz" type="fix" issue="MATH-166" due-to="Lukas Theussl">
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Increased default precision of Gamma and Beta functions.
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</action>
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2007-07-31 21:59:07 +00:00
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<action dev="psteitz" type="update" issue="MATH-158" due-to="Hasan Diwan">
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2007-06-20 23:39:50 +00:00
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Added log function to MathUtils.
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</action>
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2007-07-31 21:59:07 +00:00
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<action dev="psteitz" type="update" issue="MATH-160" due-to="Matthias Hummel">
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2007-06-24 21:10:19 +00:00
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Added two sample (binned comparison) ChiSquare test.
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</action>
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2007-07-22 02:33:08 +00:00
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<action dev="psteitz" type="fix" issue="MATH-167">
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Modified NormalDistributionImpl.cumulativeProbablity to catch
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MaxIterationsExceededException and return 0 or 1, resp. if the argument
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is more than 20 standard deviations from the mean.
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</action>
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2007-10-31 05:38:58 +00:00
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<action dev="brentworden" type="update" issue="MATH-170" due-to="David J. M. Karlsen">
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Added SynchronizedDescriptiveStatistics class.
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</action>
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2007-10-31 07:23:01 +00:00
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<action dev="brentworden" type="update" issue="MATH-154" due-to="Remi Arntzen">
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Added addAndCheck, mulAndCheck, and subAndCheck MathUtils methods for
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long integer arguments.
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</action>
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2007-11-19 01:43:14 +00:00
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<action dev="psteitz" type="update" issue="MATH-171" due-to="Niall Pemberton">
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Merged most functions from ComplexUtils into Complex class, added
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static factory method to Complex.
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</action>
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2007-11-26 05:27:05 +00:00
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<action dev="psteitz" type="update">
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Deprecated abstract factory methods and made DescriptiveStatistics a
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concrete class. Pushed implementations up from DescriptiveStatisticsImpl
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and deprecated this class. Made implementations of statistics
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configurable via setters.
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</action>
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2005-08-14 06:52:31 +00:00
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</release>
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2005-12-20 17:08:16 +00:00
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<release version="1.1" date="2005-12-17"
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2005-07-03 06:47:09 +00:00
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description="This is a maintenance release containing bug fixes and enhancements.
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2005-06-26 21:28:29 +00:00
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All API changes are binary compatible with version 1.0. The enhancements
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include some new probability distributions, a Fraction class, new matrix
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and numerical utilities, and a PRNG pluggability framework making it
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possible to replace the JDK-supplied random number generator in
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commons-math (and elsewhere) with alternative PRNG implementations.">
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-12-20 17:08:16 +00:00
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Made NewtonSolver derivative field transient and implemented readObject to
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initialize.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-12-20 17:08:16 +00:00
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Made sampleStats field private and changed getUpperBounds to return a fresh
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copy in EmpiricalDistributionImpl.
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</action>
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<action dev="psteitz" type="update">
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Added polar2Complex method to ComplexUtils to create Complex numbers
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from polar representations.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-49" due-to="Elliotte Harold">
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2005-12-20 17:08:16 +00:00
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Made all serialVersionUIDs private.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-5">
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2005-12-20 17:08:16 +00:00
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Improved documentation and test cases related to handling of infinite
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and NaN values in Complex, ComplexUtils classes.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-57" due-to="Mauro Talevi">
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2005-10-16 03:29:14 +00:00
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Fixed incorrect NaN handling in o.a.m.s.d.rank.Min, Max
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Changed RealMatrixImpl.equals to use Double.doubleToLongBits to compare
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corresponding matrix entries.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Eliminated floating point equals comparison in Percentile.evaluate.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Eliminated unnecessary assignment statements in Skewness.getResult
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method.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Synchronized getters in ResizeableDoubleArray.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Eliminated unnecessary assignment statement in BisectionSolver.solve
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method.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-74">
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2005-10-16 03:29:14 +00:00
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Implemented hashCode in the Complex class and changed the semantics of
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equals to make all instances with real or imaginary part NaN equal.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-12" due-to="Keith McDonald">
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2005-09-04 00:38:15 +00:00
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Fixed bin index overflow problem in EmpiricalDistributionImpl.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-108" due-to="Xiaogang Zhang">
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2005-10-16 03:29:14 +00:00
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Added protection against numerical overflow and underflow in the
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isBracketing method.
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2005-09-04 00:38:15 +00:00
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-47" due-to="Nikhil Gupte">
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2005-08-23 02:27:17 +00:00
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Fixed division by zero error in rounding methods.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-100" due-to="Mike Hu">
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2005-08-23 02:27:17 +00:00
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Added upper tail cumulative probability method to HypergeometricDistributionImpl.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-22" due-to="Xiaogang Zhang">
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2005-08-23 02:27:17 +00:00
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Added better handling of numerical overflow and division by zero in
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Complex calculations.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-92" due-to="Mikael Weigelt">
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2005-08-23 02:27:17 +00:00
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Changed ContinuedFraction to better handle infinite convergents that
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resulted in divergent continued fraction evaluations.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="brentworden" type="fix" issue="MATH-32" due-to="Srinivas Vemury">
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2005-08-09 13:10:26 +00:00
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Changed rounding methods to not rely on BigDecimal conversions which
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was causing numerical error.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-3" due-to="Jörg Weimar">
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2005-06-26 01:52:37 +00:00
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Changed Fraction(double) to correctly handle near-integral arguments.
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2005-06-05 03:58:14 +00:00
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-143" due-to="Jörg Weimar">
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2005-06-26 01:19:16 +00:00
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Changed lcm to throw ArithmeticException (instead of returning bogus
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value) if the result is too large to store as an integer.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-70" due-to="Mary Ellen Foster">
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2005-06-26 01:52:37 +00:00
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Added factories for TTest, ChiSquareTest and TestUtils class with
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static methods to create instances and execute tests.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="update" issue="MATH-95" due-to="Paul Field">
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2005-06-04 05:37:44 +00:00
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Eliminated repeated endpoint function evalutations in BrentSolver, SecantSolver.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="update" issue="MATH-137" due-to="Rodrigo di Lorenzo Lopes">
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2005-07-03 06:47:09 +00:00
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Added setSubMatrix methods to RealMatrixImpl, BigMatrixImpl. To
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Preserve backward compatibility with version 1.0, these methods were
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not added to the RealMatrix, BigMatrix interfaces.
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2005-05-29 20:26:11 +00:00
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</action>
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2005-05-21 16:29:19 +00:00
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<action dev="psteitz" type="update">
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Added createXIdentityMatrix methods to MatrixUtils and deprecated
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getIdentity methods in RealMatrixImpl, BigMatrixImpl.
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Modified RealMatrixImpl, BigMatrixImpl constructors to throw
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IllegalArgumentExceptions instead of ArrayIndexOutOfBounds when
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dimension arguments are not positive.
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</action>
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2005-05-15 18:23:35 +00:00
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<action dev="psteitz" type="update">
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Made PRNG pluggable for classes in the random package. Added
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RandomGenerator interface extracted from java.util.random and abstract
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implementation, AbstractRandomGenerator providing default
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implementations of methods based on nextDouble(). Added a constructor
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taking a RandomGenerator as an argument to RandomDataImpl. Changed
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ValueServer to use a RandomData in its constructor. Changes to
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1.0 classes should be backward compatible (including serialization).
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</action>
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<action dev="psteitz" type="update" due-to="C. Scott Ananian">
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2005-05-08 04:55:57 +00:00
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Added utility methods for overflow-checked integer arithmetic and
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improved gcd method in MathUtils.
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-79" due-to="Gilles Gaillard">
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2005-05-02 05:14:49 +00:00
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Fixed error in TTestImpl.homoscedasticTtest. Implementation was
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2005-06-26 19:26:00 +00:00
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incorrectly using heteroscedastic t statistic. Also improved
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sensitivity of test cases.
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2005-05-02 05:14:49 +00:00
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</action>
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2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-44" due-to="Gilles Gaillard">
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2005-04-16 21:42:59 +00:00
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Fixed javadoc errors. One-sided t-test significance adjustment was
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reversed in javadoc for boolean-valued test methods.
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</action>
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2005-04-01 20:45:21 +00:00
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<action dev="brentworden" type="fix" due-to="Ben Litchfield">
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Fixed bug in PolynomialSplineFunction to allow evaluation of the
|
2005-06-26 19:26:00 +00:00
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function at the last knot point.
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2005-04-01 20:45:21 +00:00
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</action>
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2005-03-17 03:20:12 +00:00
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<action dev="brentworden" type="add">
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Added Weibull distribution implementation.
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</action>
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2005-02-24 03:59:05 +00:00
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<action dev="brentworden" type="add">
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Added Cauchy distribution implementation.
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</action>
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2005-02-05 06:24:20 +00:00
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<action dev="brentworden" type="add">
|
2005-04-16 21:42:59 +00:00
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Added convenience methods for rounding.
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2005-02-05 06:24:20 +00:00
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</action>
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2005-02-05 05:49:45 +00:00
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<action dev="brentworden" type="add" due-to="C. Scott Ananian">
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Added Fraction class based on commons-lang implementation. With the
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fraction class, FractionFormat and ProperFractionFormat classes were
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added to provide fraction formatting and parsing.
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</action>
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</release>
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2004-12-05 17:21:30 +00:00
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<release version="1.0" date="2004-12-06"
|
2007-07-31 04:17:09 +00:00
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description="Apache Commons Math 1.0 - General Availability Release">
|
2005-06-26 19:26:00 +00:00
|
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<action dev="psteitz" type="fix" due-to="Hans van der Heijden"
|
2006-06-05 15:11:28 +00:00
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issue="MATH-24">
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2005-06-26 19:26:00 +00:00
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Fixed error in ChiSquareTestImpl. Tables containing zeros were
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(incorrectly) causing IllegalArgumentExceptions to be thrown.
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2004-12-05 17:21:30 +00:00
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</action>
|
2006-06-05 15:11:28 +00:00
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<action dev="psteitz" type="fix" issue="MATH-4">
|
2004-12-06 06:03:01 +00:00
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Removed JDK 1.4-dependent code from CertifiedDataAbstractTest,
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InvalidMatrixException and MatrixIndexException. Also dropped
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BeanTransformer, BeanTransformerTest from the release.
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</action>
|
2004-12-05 17:21:30 +00:00
|
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</release>
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|
<release version="1.0-RC2" date="2004-11-07"
|
2007-07-31 04:17:09 +00:00
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|
description="Apache Commons Math 1.0 - Release Candidate 2">
|
2004-09-19 22:48:03 +00:00
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|
<action dev="psteitz" type="fix">
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Fixed cumulative frequency and cumulative percentage problem reported
|
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|
|
to the commons-dev list by Jon Langlois on 9/14. Integer arguments to
|
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|
getCumXxx were always returning 0 due to type conversion problems.
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</action>
|
2006-06-05 15:11:28 +00:00
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|
<action dev="brentworden" type="fix" issue="MATH-63">
|
2004-10-08 06:15:51 +00:00
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|
Fixed locale-dependency in ComplexFormat.
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</action>
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|
<action dev="psteitz" type="update">
|
2005-06-26 19:26:00 +00:00
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|
|
Renamed univariate package to descriptive and multivariate to
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|
|
regression.
|
2004-10-08 06:15:51 +00:00
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</action>
|
2006-06-05 15:11:28 +00:00
|
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|
<action dev="psteitz" type="update" due-to="Ken Geis" issue="MATH-14">
|
2004-10-08 06:15:51 +00:00
|
|
|
Improved efficiency of logGamma method in o.a.c.m.special.Gamma
|
2004-09-26 02:08:47 +00:00
|
|
|
</action>
|
2005-06-26 19:26:00 +00:00
|
|
|
<action dev="psteitz" type="update" due-to="Kim van der Linde"
|
2006-06-05 15:11:28 +00:00
|
|
|
issue="MATH-122">
|
2004-10-14 05:10:09 +00:00
|
|
|
Added subMatrix and matrix-valued row and column accessor methods to
|
2004-10-25 05:37:32 +00:00
|
|
|
RealMatrix, BigMatrix interfaces and RealMatrixImpl, BigMatrixImpl.
|
2004-10-14 05:10:09 +00:00
|
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|
</action>
|
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|
<action dev="psteitz" type="update">
|
2004-10-25 05:37:32 +00:00
|
|
|
Implemented equals and hashCode in RealMatrixImpl and BigMatrixImpl.
|
2004-10-14 05:10:09 +00:00
|
|
|
</action>
|
|
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|
|
<action dev="psteitz" type="fix">
|
2005-06-26 19:26:00 +00:00
|
|
|
Fixed RealMatrixImpl, BigMatrixImpl toString methods to handle empty
|
|
|
|
|
matrix.
|
2004-10-14 05:10:09 +00:00
|
|
|
</action>
|
|
|
|
|
<action dev="psteitz" type="update">
|
|
|
|
|
Added support for "population" variance and standard deviation in
|
|
|
|
|
Variance (resp. StandardDeviation) classes.
|
|
|
|
|
</action>
|
|
|
|
|
<action dev="psteitz" type="update">
|
2004-10-25 05:37:32 +00:00
|
|
|
Removed data mutators from RealMatrix, BigMatrix interfaces and
|
|
|
|
|
RealMatrixImpl, BigMatrixImpl. RealMatrix and BigMatrix instances
|
|
|
|
|
are now immutable.
|
2004-10-14 05:10:09 +00:00
|
|
|
</action>
|
|
|
|
|
<action dev="psteitz" type="update">
|
2004-10-25 05:37:32 +00:00
|
|
|
Added MatrixUtils class, including static factory methods to create
|
|
|
|
|
RealMatrix and BigMatrix instances from arrays of various types.
|
2004-10-14 05:10:09 +00:00
|
|
|
</action>
|
2006-06-05 15:11:28 +00:00
|
|
|
<action dev="psteitz" type="fix" due-to="Fredrik Norin" issue="MATH-28">
|
2004-10-14 05:10:09 +00:00
|
|
|
Changed factorial methods to return 1 for argument = 0, instead of
|
|
|
|
|
(incorrectly) throwing IllegalArgumentException.
|
|
|
|
|
</action>
|
2005-06-26 19:26:00 +00:00
|
|
|
<action dev="psteitz" type="fix" due-to="Kim van der Linde"
|
2006-06-05 15:11:28 +00:00
|
|
|
issue="MATH-109">
|
2004-10-24 06:40:55 +00:00
|
|
|
Fixed error in SimpleRegression.getSignificance. Value returned was
|
|
|
|
|
off by a factor of 2 (did not match javadoc).
|
2004-11-07 05:07:29 +00:00
|
|
|
</action>
|
|
|
|
|
<action dev="psteitz" type="update">
|
|
|
|
|
Refactored distribution package so that mixed distributions and
|
|
|
|
|
discrete distributions with non-integer values can be represented.
|
|
|
|
|
Added Distribution base interface as well as IntegerDistribution
|
|
|
|
|
extending DiscreteDistribution. Previously existing discrete
|
|
|
|
|
distributions now implement IntegerDistribution.
|
|
|
|
|
</action>
|
2006-06-05 15:11:28 +00:00
|
|
|
<action dev="psteitz" type="update" due-to="Fredrik Norin" issue="MATH-35">
|
2004-11-07 05:07:29 +00:00
|
|
|
Added Poisson distribution implementation.
|
|
|
|
|
</action>
|
2006-06-05 15:11:28 +00:00
|
|
|
<action dev="psteitz" type="fix" issue="MATH-45">
|
2004-11-07 20:31:23 +00:00
|
|
|
Eliminated unecessary array copy operations in RealMatrixImpl,
|
|
|
|
|
BigMatrixImpl add, multiply, solve and subtract operations.
|
|
|
|
|
</action>
|
2004-09-19 22:48:03 +00:00
|
|
|
</release>
|
|
|
|
|
|
2004-12-05 17:21:30 +00:00
|
|
|
<release version="1.0-RC1" date="2004-09-07"
|
2007-07-31 04:17:09 +00:00
|
|
|
description="Apache Commons Math 1.0 - Release Candidate 1
|
2005-06-26 19:26:00 +00:00
|
|
|
This is the first release of Commons Math. Commons Math is a library
|
|
|
|
|
of lightweight, self-contained mathematics and statistics components.
|
|
|
|
|
The release candidate is being made available so that users can test
|
|
|
|
|
the release and provide feedback.">
|
2004-09-19 22:48:03 +00:00
|
|
|
</release>
|
|
|
|
|
|
|
|
|
|
</body>
|
2004-10-08 06:15:51 +00:00
|
|
|
</document>
|
