make sure at least one run in the multistart univariate optimizer use…

…s the complete search domain git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@797786 13f79535-47bb-0310-9956-ffa450edef68
apache · Jul 25, 2009 · 270d182 · 270d182
1 parent 4e2dd4d
commit 270d182
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/java/org/apache/commons/math/optimization/MultiStartUnivariateRealOptimizer.java b/src/java/org/apache/commons/math/optimization/MultiStartUnivariateRealOptimizer.java
@@ -238,8 +238,8 @@ public double optimize(final UnivariateRealFunction f, final GoalType goalType,
             try {
                 optimizer.setMaximalIterationCount(maxIterations - totalIterations);
                 optimizer.setMaxEvaluations(maxEvaluations - totalEvaluations);
-                final double bound1 = min + generator.nextDouble() * (max - min);
-                final double bound2 = min + generator.nextDouble() * (max - min);
+                final double bound1 = (i == 0) ? min : min + generator.nextDouble() * (max - min);
+                final double bound2 = (i == 0) ? max : min + generator.nextDouble() * (max - min);
                 optima[i]       = optimizer.optimize(f, goalType,
                                                      Math.min(bound1, bound2),
                                                      Math.max(bound1, bound2));