Exact Spark pipeline with new pipeline stage called OneTimeTransformer.
Exact Spark pipeline with new pipeline stage called OneTimeTransformer. This transformer is called only during the
pipeline.fit so can be used to do some additional work during fitting the model. This transformer is removed from
list of transformers in the PipelineModel since we don't want to execute this estimator also during prediction
Exact Spark pipeline with new pipeline stage called OneTimeTransformer. This transformer is called only during the pipeline.fit so can be used to do some additional work during fitting the model. This transformer is removed from list of transformers in the PipelineModel since we don't want to execute this estimator also during prediction