{"coeffs": [-6.161610801940323e-07, -1.4484654669604179e-08, -0.2554238483447103, 0.08874370268160413], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0726505376273293e-07, 4.034524092934103e-08, 0.04937189048591173, 0.04162891561998874], "covariance": [[1.1505791758721985e-14, -1.4292255810718923e-15, 4.18211812941528e-09, -3.4634208542522364e-09], [-1.4292255810718917e-15, 1.6277384656465744e-15, 1.160773022951649e-10, 9.363632824466147e-10], [4.182118129415281e-09, 1.160773022951645e-10, 0.002437583570152861, -0.0010435904521755893], [-3.4634208542522364e-09, 9.363632824466147e-10, -0.0010435904521755887, 0.001732966615696143]]}