[SPARK-13025] Allow users to set initial model in logistic regression

[GayathriMurali]

JIRA : SPARK - 13025

Modified access specifier to default(Public) to allow users to set initial model in logistic regression

[sethah]

Could you update the title with the Jira number? See here for more details.

[GayathriMurali]

Can someone review this?

[jkbradley]

This will be nice to have, but we should make initialModel be a Param

[GayathriMurali]

@jkbradley initialModel is an instance of LogisticRegressionModel, I am not sure if I understand how to make it a Param?

[sethah]

Should this wait until PR-11119 is merged?

[GayathriMurali]

@jkbradley are we waiting to get this merged until PR-11119?

[jkbradley]

Sorry for the delayed review. I'm worried that these PRs to set the initial model may need to change significantly if we merge Estimator & Model: [https://issues.apache.org/jira/browse/SPARK-14033] After the merge, setting an initial model may make less sense, for it would then be easier to copy the initial model and set some Boolean parameter indicating that fitting should begin from the current model.

[SparkQA]

Test build #66726 has finished for PR 11459 at commit ab05aa6.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

Hi all, where are we on this?

[sethah]

This can be closed.

[lanisyutin]

Hi, all, what about the status of this issue? why it was not merged? There are any ways to set initialWeights now?