dask.dataframe.from_bcolz

dask.dataframe.from_bcolz¶

dask.dataframe.from_bcolz(x, chunksize=None, categorize=True, index=None, lock=<unlocked _thread.lock object>, **kwargs)[source]¶

Read BColz CTable into a Dask Dataframe

BColz is a fast on-disk compressed column store with careful attention given to compression. https://bcolz.readthedocs.io/en/latest/

Parameters

xbcolz.ctable
chunksizeint, optional: The size(rows) of blocks to pull out from ctable.
categorizebool, defaults to True: Automatically categorize all string dtypes
indexstring, optional: Column to make the index
lock: bool or Lock: Lock to use when reading or False for no lock (not-thread-safe)