Builds a FeatureRDD without SequenceDictionary information by running an aggregate to rebuild the SequenceDictionary.
Builds a FeatureRDD without SequenceDictionary information by running an aggregate to rebuild the SequenceDictionary.
The underlying Feature RDD to build from.
Optional storage level to use for cache before building the SequenceDictionary.
Returns a new FeatureRDD.