]
Geoffrey De Smet edited comment on DROOLS-2554 at 5/16/18 7:24 AM:
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Justin included a test in this PR that proves this problem and included a fix too:
variance accumulate never escapes NaN
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Key: DROOLS-2554
URL:
https://issues.jboss.org/browse/DROOLS-2554
Project: Drools
Issue Type: Bug
Components: core engine
Reporter: Justin Goldsmith
Assignee: Mario Fusco
If you accumulate a single fact, then it gets reversed, this result never escapes being
NaN.