dask 2021.10.0

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from_delayed(value, shape, dtype=None, meta=None, name=None)

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.

Create a dask array from a dask delayed value

Examples

This example is valid syntax, but we were not able to check execution
>>> 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>
This example is valid syntax, but we were not able to check execution
>>> array.compute()
array([1., 1., 1., 1., 1.])
See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

dask.array.core.Array.to_delayed dask.array.core.from_delayed

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File: /dask/array/core.py#3463
type: <class 'function'>
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