Returns a tensor where dimensions dim1 and dim2 have been swapped. For 2D tensors, the convenience method of t() is available. 

> x = torch.Tensor(3,4):zero()                  
> x:select(2,3):fill(7) -- fill column 3 with 7
> print(x)

 0  0  7  0
 0  0  7  0
 0  0  7  0
[torch.Tensor of dimension 3x4]

> y = x:transpose(1,2) -- swap dimension 1 and 2
> print(y)

 0  0  0
 0  0  0
 7  7  7
 0  0  0
[torch.Tensor of dimension 4x3]

> y:select(2, 3):fill(8) -- fill column 3 with 8
> print(y)

 0  0  8
 0  0  8
 7  7  8
 0  0  8
[torch.Tensor of dimension 4x3]

> print(x) -- contents of x have changed as well

 0  0  7  0
 0  0  7  0
 8  8  8  8
[torch.Tensor of dimension 3x4]