May I know what’s the equivalent of PyTorch’s np.empty()?
I would like to have an empty array and concatenate arrays in a loop to this original array.
My current usage:
a = np.empty(0)  # This creates an empty array
b = np.concatenate((a, [1]))  # New array of shape (1,) 
c = np.concatenate((b,[1]))  # New array of shape (2,) and so on