{"coeffs": [-3.5622982641210393e-07, -2.654433549943688e-08, -0.2674878448412374, 0.029099374667630976], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.2818557039036557e-07, 7.457107441605678e-08, 0.07848662976460624, 0.06787544241217208], "covariance": [[1.643154045630337e-14, -5.963342361464565e-16, 4.197423768009866e-09, -3.4890769400498146e-09], [-5.963342361464564e-16, 5.560845139565078e-15, 1.313298437106432e-09, 1.2592817818869056e-09], [4.197423768009866e-09, 1.313298437106432e-09, 0.006160151051806374, -0.0005952546550958705], [-3.4890769400498146e-09, 1.2592817818869056e-09, -0.0005952546550958705, 0.004607075682648088]]}