Github user jkbradley commented on the issue:
https://github.com/apache/spark/pull/11601
I agree we should plan to support multiple columns and Vector columns in
the future. The 2 places I noticed may cause problems in the future are:
* ```ImputerModel.surrogate```: This is nice to expose, but it could be a
problem in the future if we need to return a Vector of surrogates (for a Vector
input), or even an array of surrogates (for a list of input columns). I'm Ok
with leaving it as-is for now. When we generalize it, we can throw a runtime
exception when the surrogate is a Vector or other type.
* Persistence format
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
