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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2016/03/24 05:41:25 UTC
[jira] [Assigned] (SPARK-10691) Make
LogisticRegressionModel.evaluate() method public
[ https://issues.apache.org/jira/browse/SPARK-10691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joseph K. Bradley reassigned SPARK-10691:
-----------------------------------------
Assignee: Joseph K. Bradley
> Make LogisticRegressionModel.evaluate() method public
> -----------------------------------------------------
>
> Key: SPARK-10691
> URL: https://issues.apache.org/jira/browse/SPARK-10691
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Hao Ren
> Assignee: Joseph K. Bradley
>
> The following method in {{LogisticRegressionModel}} is marked as {{private}}, which prevents users from creating a summary on any given data set. Check [here|https://github.com/feynmanliang/spark/blob/d219fa4c216e8f35b71a26921561104d15cd6055/mllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala#L272].
> {code}
> // TODO: decide on a good name before exposing to public API
> private[classification] def evaluate(dataset: DataFrame)
> : LogisticRegressionSummary = {
> new BinaryLogisticRegressionSummary(
> this.transform(dataset),
> $(probabilityCol),
> $(labelCol))
> }
> {code}
> This method is definitely necessary to test model performance.
> By the way, the name {{evaluate}} is already pretty good for me.
> [~mengxr] Could you check this ? Thx
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