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MATH-1167 

Use user-specified threshold to allow detection of singular matrix.
[Reported, with fix, by Neil Ireson.]
This commit is contained in:
Gilles 2014-11-12 12:16:13 +01:00
parent 9786ad4de8
commit 301ad59214
2 changed files with 5 additions and 1 deletions
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4
src/changes/changes.xml
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@ -73,6 +73,10 @@ Users are encouraged to upgrade to this version as this release not
2. A few methods in the FastMath class are in fact slower that their
counterpart in either Math or StrictMath (cf. MATH-740 and MATH-901).
">
<action dev="erans" type="fix" issue="MATH-1167" due-to="Neil Ireson">
"o.a.c.m.stat.regression.OLSMultipleLinearRegression": Use threshold
when performing "QRDecomposition".
</action>
<action dev="tn" type="fix" issue="MATH-1165" due-to="Pashutan Modaresi">
"FuzzyKMeansClusterer" has thrown an exception in case one of the data
points was equal to a cluster center.

2
src/main/java/org/apache/commons/math3/stat/regression/OLSMultipleLinearRegression.java
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@ -233,7 +233,7 @@ public class OLSMultipleLinearRegression extends AbstractMultipleLinearRegressio
@Override
protected void newXSampleData(double[][] x) {
super.newXSampleData(x);
qr = new QRDecomposition(getX());
qr = new QRDecomposition(getX(), threshold);
}
/**