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package eu.dnetlib.pace.distance.eval;
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import java.util.HashMap;
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/**
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* Created by claudio on 10/03/16.
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*/
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public class DistanceEvalMap extends HashMap<String, DistanceEval> {
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private double sumWeights;
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private double sumDistances = 0.0;
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public DistanceEvalMap(final double sumWeights) {
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this.sumWeights = sumWeights;
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}
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public void updateDistance(final DistanceEval d) {
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put(d.getFieldDef().getName(), d);
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if (d.getDistance() >= 0) {
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sumDistances += d.getDistance();
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} else {
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sumWeights -= d.getFieldDef().getWeight();
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}
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}
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public double distance() {
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return sumWeights == 0 ? 0 : sumDistances / sumWeights;
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}
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}
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