cfdm.Data.persist

Data.persist(inplace=False)

Persist data into memory.

Persisting turns an underlying lazy dask array into an equivalent chunked dask array, but now with the results fully computed and in memory. This can avoid the expense of re-reading the data from disk, or re-computing it, when the data is accessed on multiple occassions.

Compare with compute and array.

Performance

persist causes delayed operations to be computed.

New in version (cfdm): 1.11.2.0

See also

compute, array, datetime_array, dask.array.Array.persist

Parameters

inplace: bool, optional

If True then do the operation in-place and return None.

Returns

Data or None

The persisted data. If the operation was in-place then None is returned.

Examples

>>> e = d.persist()