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Fixed explanation for GaussDecayFunction 

The explanation now gives the correct value instead of the negative.
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Philipp Jardas 2014-09-09 17:37:30 +02:00 committed by Britta Weber
parent 91144fc92f
commit 5e0f67b516
1 changed files with 1 additions and 1 deletions
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src/main/java/org/elasticsearch/index/query/functionscore/gauss/GaussDecayFunctionParser.java
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@ -47,7 +47,7 @@ public class GaussDecayFunctionParser extends DecayFunctionParser {
public Explanation explainFunction(String valueExpl, double value, double scale) { public Explanation explainFunction(String valueExpl, double value, double scale) {
ComplexExplanation ce = new ComplexExplanation(); ComplexExplanation ce = new ComplexExplanation();
ce.setValue((float) evaluate(value, scale)); ce.setValue((float) evaluate(value, scale));
ce.setDescription("-exp(-0.5*pow(" + valueExpl + ",2.0)/" + -1 * scale + ")"); ce.setDescription("exp(-0.5*pow(" + valueExpl + ",2.0)/" + -1 * scale + ")");
return ce; return ce;
} }