a:-0.4       (0.77      ) b:   9.2343e-05 (    2.652e-07) a/b:-4518    1/b:10829  chi2:1.28148
a:-315.9     (1.63      ) b:   8.8867e-05 (    2.292e-07) a/b:-3555273 1/b:11253  chi2:2.35423