Converting list to tensor

8

is nested tensors library/feature for things like what I speak here Best way to convert a list to a tensor? - #6 by Brando_Miranda though I am also interested for deeper nesting where the final element is a tensor…

I guess this works?

# %%

import torch

# trying to convert a list of tensors to a torch.tensor

x = torch.randn(3)
xs = [x.numpy(), x.numpy()]
# xs = torch.tensor(xs)
xs = torch.as_tensor(xs)

print(xs)
print(xs.size())

# %%

import torch

# trying to convert a list of tensors to a torch.tensor

x = torch.randn(3)
xs = [x.numpy(), x.numpy(), x.numpy()]
xs = [xs, xs]
# xs = torch.tensor(xs)
xs = torch.as_tensor(xs)

print(xs)
print(xs.size())

whats wrong with this solution…?

output:

import torch
# trying to convert a list of tensors to a torch.tensor
x = torch.randn(3)
xs = [x.numpy(), x.numpy(), x.numpy()]
xs = [xs, xs]
# xs = torch.tensor(xs)
xs = torch.as_tensor(xs)
print(xs)
print(xs.size())
tensor([[[0.3423, 1.6793, 0.0863],
         [0.3423, 1.6793, 0.0863],
         [0.3423, 1.6793, 0.0863]],
        [[0.3423, 1.6793, 0.0863],
         [0.3423, 1.6793, 0.0863],
         [0.3423, 1.6793, 0.0863]]])
torch.Size([2, 3, 3])