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)

See also

from_array

more generic function not optimized for bcolz