How can I do numpy advanced indexing in chainer?

I mean how to do things like this

>>> import numpy as np
>>> a = np.array([1, 2, 3, 4])
>>> b = np.array([True, False, False, True])
>>> c = np.array([2, 0, 1, 3])
>>> a[b]
array([1, 4])
>>> a[c]
array([3, 1, 2, 4])

I have tried F.get_item but the slices parameter was limited to be

int, slice, None or Ellipsis or tuple of them

not np.narray.

So how can I do this?

[yuyu2172]

You are right. __getitem__ does not support += operation.

I would send a PR that supports += in the near future. Thanks.

[stale[bot]]

This issue is closed as announced. Feel free to re-open it if needed.