x=lab.new([value],[value],...) returns a vector x initialized with the given values.
x=lab.new({[value],[value],...},{[value],[value],...},...) returns a matrix x initialized with the given values.
> print(lab.new(1,2,3))
1
2
3
[torch.Tensor of dimension 3]
> print(lab.new({1,2},{3,4},{5,6}))
1 2
3 4
5 6
[torch.Tensor of dimension 3x2]