Github user sachingoel0101 commented on the pull request:
https://github.com/apache/flink/pull/1032#issuecomment-162550968
Hi @chiwanpark, thanks for picking this up. :)
Since a `Vector` might contain discrete fields as well as continuous
fields, we need to have a `FieldStats` object which can cover both types. To
prevent the need of casting from `FieldStats` to `ContinuousFieldStats` and
`DiscreteFieldStats` in case there is an abstract class `FieldStats`, I
supported them both in a single class.
What do you think would be the best solution here?
As for your second point regarding `T <: Vector`, will fix it.
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