Author: sebb
Date: Sat Feb 5 12:46:36 2011
New Revision: 1067433
URL: http://svn.apache.org/viewvc?rev=1067433&view=rev
Log:
MATH-506 The static field ChiSquareTestImpl.distribution serves no purpose.
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
commons/proper/math/trunk/src/site/xdoc/changes.xml
Modified:
commons/proper/math/trunk/src/main/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/main/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java?rev=1067433&r1=1067432&r2=1067433&view=diff
==============================================================================
---
commons/proper/math/trunk/src/main/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
(original)
+++
commons/proper/math/trunk/src/main/java/org/apache/commons/math/stat/inference/ChiSquareTestImpl.java
Sat Feb 5 12:46:36 2011
@@ -36,9 +36,6 @@ import org.apache.commons.math.util.Fast
*/
public class ChiSquareTestImpl implements UnknownDistributionChiSquareTest {
- /** Distribution used to compute inference statistics. */
- private ChiSquaredDistribution distribution;
-
/**
* Construct a ChiSquareTestImpl
*/
@@ -115,7 +112,7 @@ public class ChiSquareTestImpl implement
*/
public double chiSquareTest(double[] expected, long[] observed)
throws MathException {
- distribution = new ChiSquaredDistributionImpl(expected.length - 1.0);
+ ChiSquaredDistributionImpl distribution = new
ChiSquaredDistributionImpl(expected.length - 1.0);
return 1.0 - distribution.cumulativeProbability(
chiSquare(expected, observed));
}
@@ -189,7 +186,7 @@ public class ChiSquareTestImpl implement
throws MathException {
checkArray(counts);
double df = ((double) counts.length -1) * ((double) counts[0].length -
1);
- distribution = new ChiSquaredDistributionImpl(df);
+ ChiSquaredDistributionImpl distribution = new
ChiSquaredDistributionImpl(df);
return 1 - distribution.cumulativeProbability(chiSquare(counts));
}
@@ -283,7 +280,7 @@ public class ChiSquareTestImpl implement
*/
public double chiSquareTestDataSetsComparison(long[] observed1, long[]
observed2)
throws MathException {
- distribution = new ChiSquaredDistributionImpl((double)
observed1.length - 1);
+ ChiSquaredDistributionImpl distribution = new
ChiSquaredDistributionImpl((double) observed1.length - 1);
return 1 - distribution.cumulativeProbability(
chiSquareDataSetsComparison(observed1, observed2));
}
@@ -393,14 +390,4 @@ public class ChiSquareTestImpl implement
}
}
- /**
- * Modify the distribution used to compute inference statistics.
- *
- * @param value
- * the new distribution
- * @since 1.2
- */
- public void setDistribution(ChiSquaredDistribution value) {
- distribution = value;
- }
}
Modified: commons/proper/math/trunk/src/site/xdoc/changes.xml
URL:
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/site/xdoc/changes.xml?rev=1067433&r1=1067432&r2=1067433&view=diff
==============================================================================
--- commons/proper/math/trunk/src/site/xdoc/changes.xml (original)
+++ commons/proper/math/trunk/src/site/xdoc/changes.xml Sat Feb 5 12:46:36 2011
@@ -52,6 +52,10 @@ The <action> type attribute can be add,u
If the output is not quite correct, check for invisible trailing spaces!
-->
<release version="3.0" date="TBD" description="TBD">
+ <action dev="sebb" type="fix" issue="MATH-506">
+ The static field ChiSquareTestImpl.distribution serves no purpose.
+ Removed setter and static field, and made other instances local
variables.
+ </action>
<action dev="sebb" type="fix" issue="MATH-505">
TestUtils is thread-hostile. Remove getters and setters, and make
static variables final.
</action>
