mrocklin / dask / 756

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master: 94%

Build Type

push

travis-ci

Committed by Matthew Rocklin

Commit Message

add point slicing to dask.array.core

This is equivalent to numpy slicing with multiple input lists.

We could use a better name.  cc @shoyer @jhamman

Example
-------

>>> x = np.arange(56).reshape((7, 8))
>>> x
array([[ 0,  1,  2,  3,  4,  5,  6,  7],
       [ 8,  9, 10, 11, 12, 13, 14, 15],
       [16, 17, 18, 19, 20, 21, 22, 23],
       [24, 25, 26, 27, 28, 29, 30, 31],
       [32, 33, 34, 35, 36, 37, 38, 39],
       [40, 41, 42, 43, 44, 45, 46, 47],
       [48, 49, 50, 51, 52, 53, 54, 55]])

>>> d = from_array(x, chunks=(3, 4))
>>> result = isel(d, [0, 1, 6, 0], [0, 1, 0, 7])
>>> result.compute()
array([ 0,  9, 48,  7])

Fixes #433

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