{"coeffs": [-6.37153214155404e-07, -1.2242301225621855e-08, -0.263490051059113, 0.05495580813842952], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.7762572537947966e-08, 1.8809357616421055e-08, 0.01514523411081589, 0.013128818226578784], "covariance": [[1.426011884683782e-15, -1.1296045691636827e-16, 3.432901872745731e-10, -2.988879552245039e-10], [-1.129604569163683e-16, 3.5379193394241676e-16, 6.377442476703474e-11, 9.427018654943124e-11], [3.4329018727457314e-10, 6.377442476703474e-11, 0.00022937811627142117, -5.335436513282025e-05], [-2.988879552245039e-10, 9.427018654943124e-11, -5.335436513282025e-05, 0.0001723658680265473]]}