{"coeffs": [-0.04321205578442264, -2.1917075022465296e-09, -0.7917560999025779, 0.02111904833126427], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.2604819458397922, 6.909643716401311e-09, 1.1064254024939075, 0.011222458028401699], "covariance": [[5.109778627467654, -5.631389340527979e-09, 2.4815709656493383, 0.0011278773464609595], [-5.6313893405135e-09, 4.7743176287604113e-17, -2.953252751144272e-09, 1.6923417391641857e-11], [2.48157096564829, -2.9532527511477747e-09, 1.2241771712838052, -0.0009971472453473476], [0.0011278773465462136, 1.6923417391542498e-11, -0.0009971472453057194, 0.00012594356419923775]]}