{"coeffs": [-3.0202334074653444e-07, -4.704440097863938e-08, -0.29789291660170286, 0.027669694688865473], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.07695421188162e-08, 2.1269951756158854e-08, 0.029334838003903265, 0.02545132434417625], "covariance": [[1.6621555645779278e-15, -5.433342240819406e-17, 5.237342403246149e-10, -4.3508069207797276e-10], [-5.4333422408194075e-17, 4.524108477093251e-16, 1.2927791370154157e-10, 1.2812536916238236e-10], [5.237342403246148e-10, 1.2927791370154154e-10, 0.0008605327207152473, -0.00010086202479163898], [-4.3508069207797265e-10, 1.2812536916238236e-10, -0.00010086202479163897, 0.0006477699108724587]]}