torch.atleast_2d

torch.atleast_2d(*tensors)

返回每個輸入張量的二維檢視（對於零維張量）。對於二維或更高維度的輸入張量，則按原樣返回。

引數

input (Tensor 或 list of Tensors) –

返回值

output (Tensor 或 Tensor 元組)

示例

>>> x = torch.tensor(1.)
>>> x
tensor(1.)
>>> torch.atleast_2d(x)
tensor([[1.]])
>>> x = torch.arange(4).view(2, 2)
>>> x
tensor([[0, 1],
        [2, 3]])
>>> torch.atleast_2d(x)
tensor([[0, 1],
        [2, 3]])
>>> x = torch.tensor(0.5)
>>> y = torch.tensor(1.)
>>> torch.atleast_2d((x, y))
(tensor([[0.5000]]), tensor([[1.]]))