How can I define and initialize a numpy matrix of tuples?

Question

M = np.zeros((N,L))

The above statement gives a N x L matrix initially filled with 0. I need a similar statement to create a N x L matrix filled with (0,0) tuples. How can I create it?

[This](https://stackoverflow.com/questions/4231190/python-numpy-tuples-as-elements-of-an-array) might help — dubbbdan, Oct 26 '18 at 17:31

score 1 · Answer 1 · answered Oct 26 '18 at 17:40

How about this solution:

N = 3
L = 3
M = np.zeros((N,L))
res =  np.array(list(zip(M.ravel(),M.ravel())), dtype=('i4,i4')).reshape(M.shape)

# returns
array([[(0, 0), (0, 0), (0, 0)],
       [(0, 0), (0, 0), (0, 0)],
       [(0, 0), (0, 0), (0, 0)]], dtype=[('f0', '<i4'), ('f1', '<i4')])

How can I define and initialize a numpy matrix of tuples?

1 Answers1