What is the difference between [None, ...] and unsqueeze?

1

What is the difference between [None, ...] and .unsqueeze(0) when adding a new dimension to data?

In my test, both methods share the original storage and .unsqueeze(0) is slightly faster. Is [None, ...] just a wrapper of .unsqueeze()?

Thanks.

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2

Hi,

[None, ...] is numpy notation for .unsqueeze(0). The two are equivalent. The version with advanced indexing might be a bit slower because it has more checking to do to find out exactly what you want to do.

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