dask.array.from_delayed
dask.array.from_delayed¶
- dask.array.from_delayed(value, shape, dtype=None, meta=None, name=None)[source]¶
Create a dask array from a dask delayed value
This routine is useful for constructing dask arrays in an ad-hoc fashion using dask delayed, particularly when combined with stack and concatenate.
The dask array will consist of a single chunk.
Examples
>>> import dask >>> import dask.array as da >>> import numpy as np >>> value = dask.delayed(np.ones)(5) >>> array = da.from_delayed(value, (5,), dtype=float) >>> array dask.array<from-value, shape=(5,), dtype=float64, chunksize=(5,), chunktype=numpy.ndarray> >>> array.compute() array([1., 1., 1., 1., 1.])