Author: erans
Date: Thu Aug 9 15:55:18 2012
New Revision: 1371264
URL: http://svn.apache.org/viewvc?rev=1371264&view=rev
Log:
Code and javadoc cleanup.
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/optimization/direct/PowellOptimizer.java
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/optimization/direct/PowellOptimizer.java
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math3/optimization/direct/PowellOptimizer.java?rev=1371264&r1=1371263&r2=1371264&view=diff
==============================================================================
---
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/optimization/direct/PowellOptimizer.java
(original)
+++
commons/proper/math/trunk/src/main/java/org/apache/commons/math3/optimization/direct/PowellOptimizer.java
Thu Aug 9 15:55:18 2012
@@ -211,7 +211,6 @@ public class PowellOptimizer
/**
* Compute a new point (in the original space) and a new direction
* vector, resulting from the line search.
- * The parameters {@code p} and {@code d} will be changed in-place.
*
* @param p Point used in the line search.
* @param d Direction used in the line search.
@@ -223,13 +222,17 @@ public class PowellOptimizer
double[] d,
double optimum) {
final int n = p.length;
- final double[][] result = new double[2][n];
- final double[] nP = result[0];
- final double[] nD = result[1];
+ final double[] nP = new double[n];
+ final double[] nD = new double[n];
for (int i = 0; i < n; i++) {
nD[i] = d[i] * optimum;
nP[i] = p[i] + nD[i];
}
+
+ final double[][] result = new double[2][];
+ result[0] = nP;
+ result[1] = nD;
+
return result;
}
