{"coeffs": [-0.43727916683691054, -0.2809699513339244, 4.27620835106799, 0.13574351168410018], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.49313645669942e-08, 0.0, 0.0, 0.0], "covariance": [[0.006594945965379293, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0]]}