[Bug] std results are inconsistent

[ChengYen-Tang]

python:

>>> import torch
>>> x = torch.tensor([0.0, 1.0, 2.0])
>>> torch.std(x, False)
tensor(0.8165)

C#

using static TorchSharp.torch;

Tensor x = tensor(new double[] { 0, 1, 2 });
Console.WriteLine(x.std(false).ToString(style: TorchSharp.TensorStringStyle.Default));

// [], type = Float64, device = cpu, value = 1

🤔🤔🤔🤔🤔🤔🤔

[NiklasGustafsson]

@ChengYen-Tang -- thanks for finding this. The bug is in the native code -- the 'unbiased' argument is being ignored. You can try using the std_mean() function, for now.

[NiklasGustafsson]

Fixed in #974