diff options
Diffstat (limited to 'src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java')
| -rw-r--r-- | src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java b/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java index cdadf47d..a2802c24 100644 --- a/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java +++ b/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/GeneralizedExtremeValueLMMEstimator.java @@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.math.statistics.distribution.estimator; This file is part of ELKI: Environment for Developing KDD-Applications Supported by Index-Structures - Copyright (C) 2013 + Copyright (C) 2014 Ludwig-Maximilians-Universität München Lehr- und Forschungseinheit für Datenbanksysteme ELKI Development Team @@ -103,7 +103,7 @@ public class GeneralizedExtremeValueLMMEstimator extends AbstractLMMEstimator<Ge // g: Almost zero? if (Math.abs(g) < 1e-50) { double k = 0; - double sigma = xmom[1] / MathUtil.LOG2; + double sigma = xmom[1] * MathUtil.ONE_BY_LOG2; double mu = xmom[0] - Math.E * sigma; return new GeneralizedExtremeValueDistribution(mu, sigma, k); } @@ -113,7 +113,7 @@ public class GeneralizedExtremeValueLMMEstimator extends AbstractLMMEstimator<Ge if (t3 < -.8) { // Newton-Raphson iteration for t3 < -.8 if (t3 <= -.97) { - g = 1. - Math.log(1. + t3) / MathUtil.LOG2; + g = 1. - Math.log1p(t3) * MathUtil.ONE_BY_LOG2; } double t0 = .5 * (t3 + 3.); for (int it = 1;; it++) { |