Einop
One op to rule them all
Einop is a very thin wrapper around einops that combines rearrange, reduce, and repeat into a single einop function. This library is a port of arogozhnikov/einops#91 by Miles Cranmer into a separate library, if at some point that PR is merged use einop directly from einops instead.
Installation
pip install einop
Usage
import numpy as np
from einop import einop
x = np.random.uniform(size=(10, 20))
y = einop(x, "height width -> batch width height", batch=32)
assert y.shape == (32, 20, 10)Rearrange
einop(x, 'i j k -> k i j').shape
>>> (3, 100, 5)Reduction
x = np.random.randn(100, 5, 3)
einop(x, 'i j k -> i j', reduction='sum').shape
>>> (100, 5)Repeat
einop(x, 'i j k -> i j k l', l=10).shape
(100, 5, 3, 10)
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