vstack

→Tensor

vstack(tensors: list[Tensor])

Stack tensors vertically (row-wise).

1-D inputs are treated as rows of length size; higher-rank inputs are concatenated along axis 0. Convenience wrapper around cat.

tensorslist of Tensor

Tensors with compatible shapes.

Tensor

Concatenated tensor.

Counterpart to hstack (axis 1) and dstack (axis 2). As with hstack, prefer cat with an explicit dim for clarity in generic-rank code.

>>> import lucid
>>> a = lucid.tensor([1, 2, 3])
>>> b = lucid.tensor([4, 5, 6])
>>> lucid.vstack([a, b])
Tensor([[1, 2, 3],
        [4, 5, 6]])