nxcals.api.extraction.data.builders.DataFrame.persist
- DataFrame.persist(storageLevel: StorageLevel = StorageLevel(True, True, False, True, 1)) DataFrame
Sets the storage level to persist the contents of the
DataFrame
across operations after the first time it is computed. This can only be used to assign a new storage level if theDataFrame
does not have a storage level set yet. If no storage level is specified defaults to (MEMORY_AND_DISK_DESER)New in version 1.3.0.
Notes
The default storage level has changed to MEMORY_AND_DISK_DESER to match Scala in 3.0.