{"coeffs": [-4.883373082240618e-07, -1.2039352603158701e-08, -0.17366179316796457, 0.039995055822871446], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.09271039225267e-08, 7.173774150841272e-08, 0.05355050001421362, 0.04660423361025065], "covariance": [[8.26773822773797e-15, -5.660088529043273e-16, 1.939937430820695e-09, -1.723097269000923e-09], [-5.660088529043274e-16, 5.146303556727842e-15, 1.1540706965222605e-09, 1.1152661990818891e-09], [1.9399374308206944e-09, 1.1540706965222605e-09, 0.0028676560517722927, -0.0001526251785558126], [-1.723097269000923e-09, 1.1152661990818891e-09, -0.00015262517855581262, 0.0021719545903988165]]}