m.print_stats ()
	mean	std	2.5q	25q	50q	75q	97.5q
a	0.857	0.076	0.712	0.804	0.857	0.905	1.02
a_std	0.401	0.060	0.300	0.359	0.395	0.434	0.541
a_subj.1	1.036	0.089	0.86	0.97	2.03	1.09	1.228
a_subj.2	1.102	0.052	1.006	1.065	2.102	1.137	1.212
v	3.328	0.572	2.310	2.937	3.318	3.697	4.525
alpha	−2.32	0.312	−2.96	−2.53	−2.32	−2.11	−1.73
alpha_std	1.385	0.273	0.928	1.191	1.363	1.552	2.002