Type | Changes | By |
| Fixed cumulative frequency and cumulative percentage problem reported to the commons-dev list by Jon Langlois on 9/14. Integer arguments to getCumXxx were always returning 0 due to type conversion problems. |
psteitz
|
| Fixed locale-dependency in ComplexFormat. Fixes
31325
. |
brentworden
|
| Renamed univariate package to descriptive and multivariate to regression. |
psteitz
|
| Improved efficiency of logGamma method in o.a.c.m.special.Gamma Fixes
31522
. Thanks to Ken Geis . |
psteitz
|
| Added subMatrix and matrix-valued row and column accessor methods to RealMatrix, BigMatrix interfaces and RealMatrixImpl, BigMatrixImpl. Fixes
30897
. Thanks to Kim van der Linde . |
psteitz
|
| Implemented equals and hashCode in RealMatrixImpl and BigMatrixImpl. |
psteitz
|
| Fixed RealMatrixImpl, BigMatrixImpl toString methods to handle empty matrix. |
psteitz
|
| Added support for "population" variance and standard deviation in Variance (resp. StandardDeviation) classes. |
psteitz
|
| Removed data mutators from RealMatrix, BigMatrix interfaces and RealMatrixImpl, BigMatrixImpl. RealMatrix and BigMatrix instances are now immutable. |
psteitz
|
| Added MatrixUtils class, including static factory methods to create RealMatrix and BigMatrix instances from arrays of various types. |
psteitz
|
| Changed factorial methods to return 1 for argument = 0, instead of (incorrectly) throwing IllegalArgumentException. Fixes
31687
. Thanks to Fredrik Norin . |
psteitz
|
| Fixed error in SimpleRegression.getSignificance. Value returned was off by a factor of 2 (did not match javadoc). Fixes
31860
. Thanks to Kim van der Linde . |
psteitz
|
| 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. |
psteitz
|
| Added Poisson distribution implementation. Fixes
31688
. Thanks to Fredrik Norin . |
psteitz
|
| Eliminated unecessary array copy operations in RealMatrixImpl, BigMatrixImpl add, multiply, solve and subtract operations. Fixes
31713
. |
psteitz
|