pyriemann.utils.mean.mean_euclid

pyriemann.utils.mean.mean_euclid(X=None, sample_weight=None, covmats=None)

Mean of matrices according to the Euclidean metric.

\[\mathbf{M} = \sum_i w_i \ \mathbf{X}_i\]

This mean is also called arithmetic.

Parameters:

Xndarray, shape (n_matrices, n, m)

Set of matrices.

sample_weightNone | ndarray, shape (n_matrices,), default=None

Weights for each matrix. If None, it uses equal weights.

Returns:

Mndarray, shape (n, m)

Euclidean mean.

See also

mean_covariance