torch.isnan# torch.isnan(input) → Tensor# Returns a new tensor with boolean elements representing if each element of input is NaN or not. Complex values are considered NaN when either their real and/or imaginary part is NaN. Parameters input (Tensor) – the input tensor. Returns A boolean tensor that is True where input is NaN and False elsewhere Example: >>> torch.isnan(torch.tensor([1, float('nan'), 2])) tensor([False, True, False])