{"coeffs": [-1.0296512246662318e-06, 4.031680375146495e-05, 0.46878774281311797, 0.1331131779176254], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.0383496522304977e-07, 1.081188635060166e-06, 0.007097713528193386, 0.005534115648756149], "covariance": [[9.231568609209186e-14, -2.2580834824261776e-13, -9.900766996446787e-10, -1.434210725706371e-09], [-2.2580834824261786e-13, 1.1689688645832646e-12, 7.256908499555288e-09, 5.499714042084994e-09], [-9.900766996446785e-10, 7.256908499555286e-09, 5.0377537328299404e-05, 3.129231093785036e-05], [-1.4342107257063709e-09, 5.499714042084994e-09, 3.129231093785036e-05, 3.062643601380769e-05]]}