Robert Muir created LUCENE-8012:
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Summary: Improve Explanation class
Key: LUCENE-8012
URL: https://issues.apache.org/jira/browse/LUCENE-8012
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
Explanation class is currently nice and simple, and float matches the scoring
api, but this does not work well for debugging numerical errors of internal
calculations (it usually makes practical sense to use 64-bit double to avoid
issues).
Also it makes for nasty formatting of integral values such as number of tokens
in the collection or even document's length, its just noise to see {{10.0}}
there instead of {{10}}, and scientific notation for e.g. number of documents
is just annoying.
One idea is to take Number instead of float? Then you could pass in the correct
numeric type (int,long,double,float) for internal calculations, parameters,
statistics, etc, and output would look nice.
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