{"coeffs": [-5.965682697621352e-07, -1.7983700841787803e-08, -0.2693992637597475, 0.03800615916302155], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.2926422187695e-08, 1.778965681780797e-08, 0.012506453648715176, 0.010822190313945029], "covariance": [[1.0841492780823334e-15, -5.4133823785120315e-17, 2.02731744028109e-10, -1.7234473405270343e-10], [-5.4133823785120315e-17, 3.164718896953816e-16, 5.1734801434402866e-11, 5.6558953226876894e-11], [2.0273174402810897e-10, 5.1734801434402866e-11, 0.00015641138286746114, -2.273220653486258e-05], [-1.7234473405270343e-10, 5.6558953226876894e-11, -2.2732206534862575e-05, 0.00011711980319124558]]}