Repository: commons-rng Updated Branches: refs/heads/master a51f23f26 -> 01a2c09ce
RNG-42: Use faster implementation. Project: http://git-wip-us.apache.org/repos/asf/commons-rng/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-rng/commit/d1105853 Tree: http://git-wip-us.apache.org/repos/asf/commons-rng/tree/d1105853 Diff: http://git-wip-us.apache.org/repos/asf/commons-rng/diff/d1105853 Branch: refs/heads/master Commit: d1105853ea4bdb5a330b6b697a96900c77f50dff Parents: a51f23f Author: Gilles <er...@apache.org> Authored: Fri Jan 12 12:29:22 2018 +0100 Committer: Gilles <er...@apache.org> Committed: Fri Jan 12 12:29:22 2018 +0100 ---------------------------------------------------------------------- .../org/apache/commons/rng/sampling/UnitSphereSampler.java | 7 ++++--- .../distribution/AhrensDieterMarsagliaTsangGammaSampler.java | 2 +- .../commons/rng/sampling/distribution/PoissonSampler.java | 2 +- 3 files changed, 6 insertions(+), 5 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-rng/blob/d1105853/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/UnitSphereSampler.java ---------------------------------------------------------------------- diff --git a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/UnitSphereSampler.java b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/UnitSphereSampler.java index 8ade58b..b289025 100644 --- a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/UnitSphereSampler.java +++ b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/UnitSphereSampler.java @@ -18,7 +18,8 @@ package org.apache.commons.rng.sampling; import org.apache.commons.rng.UniformRandomProvider; -import org.apache.commons.rng.sampling.distribution.MarsagliaNormalizedGaussianSampler; +import org.apache.commons.rng.sampling.distribution.NormalizedGaussianSampler; +import org.apache.commons.rng.sampling.distribution.ZigguratNormalizedGaussianSampler; /** * Generate vectors <a href="http://mathworld.wolfram.com/SpherePointPicking.html";> @@ -28,7 +29,7 @@ import org.apache.commons.rng.sampling.distribution.MarsagliaNormalizedGaussianS */ public class UnitSphereSampler { /** Sampler used for generating the individual components of the vectors. */ - private final MarsagliaNormalizedGaussianSampler sampler; + private final NormalizedGaussianSampler sampler; /** Space dimension. */ private final int dimension; @@ -40,7 +41,7 @@ public class UnitSphereSampler { public UnitSphereSampler(int dimension, UniformRandomProvider rng) { this.dimension = dimension; - sampler = new MarsagliaNormalizedGaussianSampler(rng); + sampler = new ZigguratNormalizedGaussianSampler(rng); } /** http://git-wip-us.apache.org/repos/asf/commons-rng/blob/d1105853/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterMarsagliaTsangGammaSampler.java ---------------------------------------------------------------------- diff --git a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterMarsagliaTsangGammaSampler.java b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterMarsagliaTsangGammaSampler.java index 7883362..03d7a08 100644 --- a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterMarsagliaTsangGammaSampler.java +++ b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/AhrensDieterMarsagliaTsangGammaSampler.java @@ -60,7 +60,7 @@ public class AhrensDieterMarsagliaTsangGammaSampler super(rng); this.alpha = alpha; this.theta = theta; - gaussian = new MarsagliaNormalizedGaussianSampler(rng); + gaussian = new ZigguratNormalizedGaussianSampler(rng); } /** {@inheritDoc} */ http://git-wip-us.apache.org/repos/asf/commons-rng/blob/d1105853/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/PoissonSampler.java ---------------------------------------------------------------------- diff --git a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/PoissonSampler.java b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/PoissonSampler.java index 50e696e..2e2d46d 100644 --- a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/PoissonSampler.java +++ b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/PoissonSampler.java @@ -64,7 +64,7 @@ public class PoissonSampler this.mean = mean; - gaussian = new MarsagliaNormalizedGaussianSampler(rng); + gaussian = new ZigguratNormalizedGaussianSampler(rng); exponential = new AhrensDieterExponentialSampler(rng, 1); factorialLog = mean < PIVOT ? null : // Not used.
