{"coeffs": [-3.7446904937107305e-07, 4.82598086687841e-06, 0.7536053002126486, 0.1684403472418948], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.008209084615742e-08, 2.0782158198388034e-07, 0.01026405457540426, 0.00814706703464277], "covariance": [[3.609857640445913e-15, -1.1611783439835164e-14, -5.354399307216394e-10, -4.791350322183483e-10], [-1.1611783439834953e-14, 4.3189809938282697e-14, 2.110466698152455e-09, 1.663380388013528e-09], [-5.354399307216248e-10, 2.1104666981524402e-09, 0.00010535081632687713, 7.928515834469521e-05], [-4.79135032218344e-10, 1.663380388013542e-09, 7.928515834469647e-05, 6.637470126696295e-05]]}