torch.sign# torch.sign(input, *, out=None) → Tensor# Returns a new tensor with the signs of the elements of input. outi=sgn(inputi)\text{out}_{i} = \operatorname{sgn}(\text{input}_{i}) outi=sgn(inputi) Parameters input (Tensor) – the input tensor. Keyword Arguments out (Tensor, optional) – the output tensor. Example: >>> a = torch.tensor([0.7, -1.2, 0., 2.3]) >>> a tensor([ 0.7000, -1.2000, 0.0000, 2.3000]) >>> torch.sign(a) tensor([ 1., -1., 0., 1.])