diff --git a/RELEASE-NOTES.txt b/RELEASE-NOTES.txt index 56e8d19a1..e6cf18df8 100644 --- a/RELEASE-NOTES.txt +++ b/RELEASE-NOTES.txt @@ -1,116 +1,32 @@ -The Apache Commons Math team is pleased to announce the commons-math3-3.6 release! -The Apache Commons Math project is a library of lightweight, self-contained mathematics -and statistics components addressing the most common practical problems not immediately -available in the Java programming language or commons-lang. + Apache Commons Math 3.6.1 RELEASE NOTES + +The Apache Commons Math team is pleased to announce the release of +commons-math3-3.6.1 + +The Apache Commons Math project is a library of lightweight, self-contained +mathematics and statistics components addressing the most common practical +problems not immediately available in the Java programming language or +commons-lang. + +This is a minor bug fix release. It incorporates three bug fixes since version +3.6. The minimum version of the Java platform required to compile and use +Commons Math 3.6.1 is Java 5. Changes in this version include: -New features: -o Added a RotationConvention enumerate to allow specifying the semantics - or axis/angle for rotations. This enumerate has two values: - VECTOR_OPERATOR and FRAME_TRANSFORM. Issue: MATH-1302,MATH-1303. -o Added a field-based version of Ordinary Differential Equations framework. - This allows integrating ode that refer to RealField elements instead of - primitive double, hence opening the way to use DerivativeStructure to - compute partial differential without using variational equations, or to solve - ode with extended precision using Dfp. Issue: MATH-1288. -o Added a nth order Brent solver for general real fields, replacing the former - solver that was restricted to Dfp fields only. -o New "Range" inner class of "o.a.c.m.util.IntegerSequence". Issue: MATH-1286. -o "AggregateSummaryStatistics" can now aggregate any kind of - "StatisticalSummary". Issue: MATH-837. -o Deep copy of "Network" (package "o.a.c.m.ml.neuralnet") to allow evaluation of - of intermediate states during training. Issue: MATH-1278. -o Added negative zero support in FastMath.pow. Issue: MATH-1273. Thanks to Qualtagh. -o Various SOFM visualizations (in package "o.a.c.m.ml.neuralnet.twod.util"): - Unified distance matrix, hit histogram, smoothed data histograms, - topographic error, quantization error. Issue: MATH-1270. -o New interfaces to be implemented by algorithms that visualizes properties - of a "NeuronSquareMesh2D" (package "o.a.c.m.ml.neuralnet.twod.util"). Issue: MATH-1268. -o Reimplemented pow(double, double) in FastMath, for better accuracy in - integral power cases and trying to fix erroneous JIT optimization again. -o Added a pow(double, long) method in FastMath. -o "NeuronSquareMesh2D" (package "o.a.c.m.ml.neuralnet.twod") implements "Iterable". Issue: MATH-1265. -o "MapUtils" (package "o.a.c.m.ml.neuralnet"): Method to sort units according to distance - from a given vector. Issue: MATH-1264. -o Accessor (class "o.a.c.m.ml.neuralnet.twod.NeuronSquareMesh2D"). Issue: MATH-1263. -o New "IntegerSequence" class (in package "o.a.c.m.util") with "Incrementor" inner class. Issue: MATH-1259. -o "Neuron" class (package "o.a.c.m.ml.neuralnet"): added methods that can be used - to assess concurrency performance. Issue: MATH-1250. -o Method "cosAngle" in "o.a.c.m.util.MathArrays". Issue: MATH-1244. - Fixed Bugs: -o Improved performance and accuracy of 2-sample KolmogorovSmirnov tests. Issue: MATH-1310. -o Detect start failures with multi-step ODE integrators. Issue: MATH-1297. -o Fixed stability issues with Adams-Bashforth and Adams-Moulton ODE integrators. - The integrators did not estimate the local error properly and were sometimes - stuck attempting to reduce indefinitely the step size as they thought the - error was too high. Thanks to Julien Queyrel. -o Increased default value for number of allowed evaluations in - "o.a.c.m.optim.univariate.BracketFinder". Issue: MATH-1295. Thanks to Luke Lindsay. -o Fixed potential race condition in PolynomialUtils#buildPolynomial in - case polynomials are generated from multiple threads. Furthermore, the - synchronization is now performed on the coefficient list instead of the class. Issue: MATH-1294. Thanks to Kamil Włodarczyk. -o Fixed FastMath.exp that potentially returned NaN for non-NaN argument. Issue: MATH-1269. -o Updated reference in ZipfDistribution's javadoc. Issue: MATH-1285. Thanks to Pim van der Hoorn. -o Fixed "Gamma#gamma(double)" for negative values smaller than -20. Issue: MATH-1283. Thanks to Jean Noel Delavalade. -o Fixed javadoc of methods {floorDiv,floorMod} in class "FastMath". Issue: MATH-1237. Thanks to Ken Williams. -o Check precondition (class "o.a.c.m.random.EmpiricalDistribution"). Issue: MATH-1279. -o Fixed incorrect Kendall's tau coefficient calculation due to internal integer overflow. Issue: MATH-1277. Thanks to Marc Rosen. -o Fixed split/side inconsistencies in BSP trees. Issue: MATH-1266. -o Avoid overflow in "Fraction" (multiplication or division by an int). Issue: MATH-1261. Thanks to Osamu Ikeuchi. -o Added check for equal array lengths to distance measure functions. Issue: MATH-1258. Thanks to Gunel Jahangirova. -o Better accuracy in computation of cumulative probability of "NormalDistribution" - (package "o.a.c.m.distribution"). Issue: MATH-1257. Thanks to Bill Murphy. -o Boundary check to construct an "Interval" (package "o.a.c.m.geometry.euclidean.oned"). Issue: MATH-1256. -o Wrong neighbourhood size in class "KohonenUpdateAction" (package "o.a.c.m.ml.neuralnet.sofm"). Issue: MATH-1255. -o ResizableDoubleArray constructor does not work with double array of size 1. Issue: MATH-1252. Thanks to John Bay. -o Fixed initial value of "number of calls" counter in class "KohonenUpdateAction" - (package "o.a.c.m.ml.neuralnet.sofm"). Issue: MATH-1251. -o Removed unnecessary allocations in "BigFraction" (package "o.a.c.m.fraction"). Issue: MATH-1248. Thanks to Chris Popp. -o Fixed error in computing discrete distribution of D statistics for small-sample - 2-sample Kolmogorov-Smirnov tests. Error was causing incorrect p-values returned - by exactP and monteCarloP methods (used by default for small, mid-size samples). Issue: MATH-1245. -o "KolmogorovSmirnovTest#ksSum(...)" returned wrong result in case the provided - t-parameters was zero. This affected the calculation of "approximateP(...)" for - identical samples. Issue: MATH-1240. -o Improved performance to calculate the two-sample Kolmogorov-Smirnov test - via monte carlo simulation ("KolmogorovSmirnovTets#monteCarloP(...)"). Issue: MATH-1242. Thanks to Otmar Ertl. -o A "StackOverflowException" was thrown when passing Double.NaN or infinity - to "Gamma#digamma(double)" or "Gamma#trigamma(double)". Now the input value - is propagated to the output if it is not a real number. Issue: MATH-1241. Thanks to Aleksei Dievskii. -o Improved performance of calculating the two-sample Kolmogorov-Smirnov - test statistic. Issue: MATH-1232. Thanks to Otmar Ertl. -o Fixed error message for unknown parameter name in ODE. Issue: MATH-1232. -o Fixed wrong event detection in case of close events pairs. Issue: MATH-1226. -o Fix potential branching errors in "FastMath#pow(double, double)" when - passing special values, i.e. infinity, due to erroneous JIT optimization. -o Fixed equals/hashcode contract failure for Dfp. Issue: MATH-1118. -o Fixed wrong splitting of huge number in extended accuracy algorithms. Issue: MATH-1223. -o Improve performance of "BetaDistribution#sample()" by using Cheng's algorithm. Issue: MATH-1153. Thanks to Sergei Lebedev. -o Computation of 2-sample Kolmogorov-Smirnov statistic in case of ties - was not correct. Issue: MATH-1197. +o MATH-1316: Fix code example in User Guide > Statistics > Multiple linear regression. +o MATH-1342: Fix ODE integrators when multiple events are nearly simultaneous. Changes: -o Modified 2-sample KolmogorovSmirnovTest to handle ties in sample data. By default, - ties are broken by adding random jitter to input data. Also added bootstrap method - analogous to ks.boot in R Matching package. Issue: MATH-1246. -o Added bootstrap method to KolmogorovSmirnov test. Issue: MATH-1246. -o Added constructors taking sample data as arguments to enumerated real and integer distributions. Issue: MATH-1287. -o Improved performance of sampling and inverse cumulative probability calculation - for geometric distributions. Issue: MATH-1276. -o Representation of Kolmogorov-Smirnov statistic as integral value. Issue: MATH-1274. -o Faster generation of Zipf distributed random numbers by using rejection-inversion sampling. Issue: MATH-1220. -o Improved performance of sort-in-place methods by avoiding boxing. Issue: MATH-990. -o Refactored implementation of the "miscrosphere projection" - interpolation algorithm. - New classes: "MicrosphereProjectionInterpolator", - "InterpolatingMicrosphere" and "InterpolatingMicrosphere2D" - replace "MicrosphereInterpolator" and "MicrosphereInterpolatingFunction". - (package "o.a.c.m.analysis.interpolation"). Issue: MATH-1243. +o MATH-1317: Add uniformity unit tests to "RandomGeneratorAbstractTest". -Have fun! --Apache Commons Math team +For complete information on Apache Commons Math, including instructions on how +to submit bug reports, patches, or suggestions for improvement, see the Apache +Commons Math website: + +http://commons.apache.org/proper/commons-math/ + diff --git a/pom.xml b/pom.xml index 306b7a948..3a812ae44 100644 --- a/pom.xml +++ b/pom.xml @@ -24,7 +24,7 @@ 4.0.0 org.apache.commons commons-math3 - 3.7-SNAPSHOT + 3.6.1 Apache Commons Math 2003 @@ -369,9 +369,9 @@ org.apache.commons.math3 - 3.6 + 3.6.1 (requires Java 1.5+) - RC2 + RC1 -bin 2.2 diff --git a/src/changes/changes.xml b/src/changes/changes.xml index 7e4cd28b1..aa3cbcf2f 100644 --- a/src/changes/changes.xml +++ b/src/changes/changes.xml @@ -50,7 +50,7 @@ If the output is not quite correct, check for invisible trailing spaces! 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