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avoid to divide by zero: in case of missing values, return undefined response

This commit is contained in:
Claudio Atzori 2019-06-18 14:45:15 +02:00
parent e3f86b92c8
commit f2bc665403
1 changed files with 4 additions and 0 deletions
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4
dnet-pace-core/src/main/java/eu/dnetlib/pace/condition/PidMatch.java
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@ -43,6 +43,10 @@ public class PidMatch extends AbstractCondition {
int incommon = Sets.intersection(pidAset, pidBset).size(); int incommon = Sets.intersection(pidAset, pidBset).size();
int simDiff = Sets.symmetricDifference(pidAset, pidBset).size(); int simDiff = Sets.symmetricDifference(pidAset, pidBset).size();
if (incommon + simDiff == 0) {
return new ConditionEval(cond, a, b, 0);
}
int result = incommon / (incommon + simDiff) > 0.5 ? 1 : -1; int result = incommon / (incommon + simDiff) > 0.5 ? 1 : -1;
return new ConditionEval(cond, a, b, result); return new ConditionEval(cond, a, b, result);