{"coeffs": [-4.107422266671823e-05, 6.934139514715513e-07, -0.4092081612101258, 0.12370650426221776], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.483327362145758e-06, 3.7686725407132605e-07, 0.05461348361316623, 0.020148193216239018], "covariance": [[7.19668431333309e-11, -1.24802513116921e-12, 4.5958385935745755e-07, -1.5692926382445964e-07], [-1.2480251311692098e-12, 1.4202892719126143e-13, -7.206377308522435e-09, 4.023270027027406e-09], [4.5958385935745766e-07, -7.206377308522516e-09, 0.0029826325923655765, -0.0010096209636689386], [-1.569292638244596e-07, 4.023270027027398e-09, -0.001009620963668938, 0.0004059496898789]]}