Fanoid opened a new pull request, #211:
URL: https://github.com/apache/flink-ml/pull/211
## What is the purpose of the change
KBinsDiscretizer produces `{Double.MIN_VALUE, Double.MAX_VALUE}` for columns
whose input values are same which is not correct, as it doesn't cover negative
values and 0. A more reasonable value should be `{Double.NEGATIVE_INFINITY,
Double.POSITIVE_INFINITY}`.
## Brief change log
- Change bin edges for columns whose input values are same to
`{Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY}`.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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