Add to_one_hot function

[zou3519]

🚀 Feature

Convert a tensor of index values to one-hot encoding

Motivation

It's kind of strange not to have it

Pitch

This old PR does it: #4774

also torch.distributions has it as well, we should just expose it as part of torch.*

[vadimkantorov]

Naming alternative: should it be like in tf just one_hot without to_?

[zasdfgbnm]

@vadimkantorov I also personally prefer one_hot. What is your opinion? @zou3519

[zou3519]

Just one_hot sounds good to me, then

[makslevental]

i'm confused - is this in torch.nn.functional or not? when i search this repo there's an in-tree commit that has a reference to it (https://github.com/pytorch/pytorch/blob/3caf4e6985e2696cdead13aaa36d459a1aea3bdd/torch/nn/functional.py) but it's not in master

[zasdfgbnm]

Hi @makslevental, isn't it in https://github.com/pytorch/pytorch/blob/master/torch/nn/functional.py#L2897 ?

[makslevental]

@zasdfgbnm hmm sorry i must've been browsing on some other commit. thanks!