Repository: commons-statistics Updated Branches: refs/heads/master 9cadb96cb -> 12df0cf3d
Use "log1p(x)" instead of "log(1 + x)". Project: http://git-wip-us.apache.org/repos/asf/commons-statistics/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-statistics/commit/b34e7838 Tree: http://git-wip-us.apache.org/repos/asf/commons-statistics/tree/b34e7838 Diff: http://git-wip-us.apache.org/repos/asf/commons-statistics/diff/b34e7838 Branch: refs/heads/master Commit: b34e783874339ac1a043f040584d52d54858feaf Parents: 9cadb96 Author: Gilles Sadowski <[email protected]> Authored: Sat Jan 27 17:15:53 2018 +0100 Committer: Gilles Sadowski <[email protected]> Committed: Sat Jan 27 17:15:53 2018 +0100 ---------------------------------------------------------------------- .../org/apache/commons/statistics/distribution/TDistribution.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-statistics/blob/b34e7838/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java ---------------------------------------------------------------------- diff --git a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java index a579e15..e5baad3 100644 --- a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java +++ b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java @@ -77,7 +77,7 @@ public class TDistribution extends AbstractContinuousDistribution { @Override public double logDensity(double x) { final double nPlus1Over2 = dofOver2 + 0.5; - return factor - nPlus1Over2 * Math.log(1 + x * x / degreesOfFreedom); + return factor - nPlus1Over2 * Math.log1p(x * x / degreesOfFreedom); } /** {@inheritDoc} */
