{"coeffs": [-5.012094383500434e-08, -4.838909894508991e-10, -0.1066473067647145, 0.03303502122485979], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.4517642298091e-08, 8.114976255785899e-08, 0.48697144465595676, 0.42295986377232986], "covariance": [[7.14323185962806e-15, -4.421646422200064e-16, 1.3373129731924118e-08, -1.1724174590547783e-08], [-4.421646422200065e-16, 6.585283963196892e-15, 1.2245077579533882e-08, 1.0851390234159483e-08], [1.3373129731924116e-08, 1.224507757953388e-08, 0.23714118791030958, -0.0019088917550610502], [-1.1724174590547785e-08, 1.0851390234159483e-08, -0.0019088917550610502, 0.17889504636230785]]}