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https://issues.apache.org/jira/browse/SPARK-9120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14630654#comment-14630654
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Alexander Ulanov commented on SPARK-9120:
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Thank you, it sounds doable.
> Add multivariate regression (or prediction) interface
> -----------------------------------------------------
>
> Key: SPARK-9120
> URL: https://issues.apache.org/jira/browse/SPARK-9120
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.4.0
> Reporter: Alexander Ulanov
> Fix For: 1.4.0
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> org.apache.spark.ml.regression.RegressionModel supports prediction only for a
> single variable with a method "predict:Double" by extending the Predictor.
> There is a need for multivariate prediction, at least for regression. I
> propose to modify "RegressionModel" interface similarly to how it is done in
> "ClassificationModel", which supports multiclass classification. It has
> "predict:Double" and "predictRaw:Vector". Analogously, "RegressionModel"
> should have something like "predictMultivariate:Vector".
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