Joseph K. Bradley created SPARK-7176:
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Summary: Add validation functionality to individual Param
Key: SPARK-7176
URL: https://issues.apache.org/jira/browse/SPARK-7176
Project: Spark
Issue Type: Sub-task
Components: ML
Reporter: Joseph K. Bradley
Assignee: Joseph K. Bradley
This issue was brought up by
[https://issues.apache.org/jira/browse/SPARK-7147]: There are multiple
locations in which a parameter can be specified (in setters and in calling
fit/transform), and we should check the parameter value in each one. It would
be nice to avoid duplicating the checking code.
Proposed change:
* Add field to class Param: {{val isValid: T => Boolean}}, with default value
of always returning true
* Add helper methods in new ParamCheck object for constructing common
validation checks (especially to help Java users)
* Ensure that this validation is always done, most likely by always settings
parameters by constructing a ParamPair + validating inside the ParamPair
constructor
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