Aleksei Dievskii created MATH-1037:
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Summary: Distribution tests are mostly meaningful due to high
tolerance
Key: MATH-1037
URL: https://issues.apache.org/jira/browse/MATH-1037
Project: Commons Math
Issue Type: Bug
Affects Versions: 3.2
Reporter: Aleksei Dievskii
Priority: Minor
The tolerance used for value comparison in {{IntegerDistributionAbstractTest}}
is {{1E-4}}. However, most values being compared are much smaller, so they are
considered equal even if they otherwise differ by orders of magnitude. For
example, a typo in {{GeometricDistributionTest}} puts 29 in the test points
instead of 19, while the test probability value is correctly given for 19. The
test passes, disregarding the fact that {{2.437439e-05}} (test value for 19)
and {{1.473826e-07}} (actual value for 29) differ almost hundredfold.
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