trait ReversibleDFCalculator extends AnyRef
Trait to be mixed in to metric calculator to support reversal of error collection logic. Reversible metric calculators can collect metric errors either in direct or in reversed mode depending on provided boolean flag.
- Self Type
- ReversibleDFCalculator with DFMetricCalculator
- Note
unlike RDD metric calculators, DF metric calculators essentially require only presence of
reversed
boolean flag. The rest of reversible logic will be implemented within spark expression.
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val
reversed: Boolean
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