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sklearn.datasets.make_spd_matrix

sklearn.datasets.make_spd_matrix(n_dim, random_state=None)

Generate a random symmetric, positive-definite matrix.

Parameters :

n_dim : int

The matrix dimension.

random_state : int, RandomState instance or None, optional (default=None)

If int, random_state is the seed used by the random number generator; If RandomState instance, random_state is the random number generator; If None, the random number generator is the RandomState instance used by np.random.

Returns :

X : array of shape [n_dim, n_dim]

The random symmetric, positive-definite matrix.

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