current_params = array([(2.51460515, 60.12832316, 0.90428702, 11.66108819, 0.86533355),
                        (4.2893485,  79.76680985, 0.52047055,  7.04450242, 0.58358284)])
current_weights = array([ 0.45165145,  0.54834855])
Q = Q_i ( data, current_params, current_weights )
M_step ( data, Q, current_params, current_weights )