Function error

mne/coreg.py:475–482

(x)

    if param_info == (True, False, 0):

        def error(x):
            rx, ry, rz = x
            trans = rotation3d(rx, ry, rz)
            est = np.dot(src_pts, trans.T)
            d = tgt_pts - est
            if weights is not None:
                d *= weights
            return d.ravel()

        if x0 is None:
            x0 = (0, 0, 0)