{"coeffs": [-5.292447195459053e-07, -4.7291029420190045e-08, -0.0931425406155464, 0.041840712176846984], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.7015943378391334e-08, 5.695763855386863e-08, 0.038323832972103775, 0.03342006354729497], "covariance": [[3.2508177993279262e-15, -2.934397098654716e-16, 7.70085946211654e-10, -7.155233944352128e-10], [-2.934397098654716e-16, 3.2441725896331418e-15, 7.687531868279075e-10, 7.143666389935329e-10], [7.700859462116541e-10, 7.687531868279075e-10, 0.0014687161736737083, 2.1838103495326474e-07], [-7.155233944352128e-10, 7.143666389935329e-10, 2.1838103495326474e-07, 0.0011169006475052344]]}