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https://issues.apache.org/jira/browse/SPARK-18205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-18205.
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Resolution: Invalid
Resolving for now as lacking detail as an issue
> Spark ML Estimators and Models needs documentation
> ---------------------------------------------------
>
> Key: SPARK-18205
> URL: https://issues.apache.org/jira/browse/SPARK-18205
> Project: Spark
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 2.0.3
> Reporter: nirav patel
>
> I see that most of the Algorithms are missing documentation. It's really hard
> to know what exactly Fit and Transform methods does for given algorithm
> without it. e.g. One can assume that IDF model Fit method will compute TF-IDF
> for given dataset. but then how it uses that information to Transform new
> dataset? In other words, what parameters exactly Estimator learned during
> Fitting and will re-use it for Transformation.
> Same thing apply for all Estimators and Transformers.
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