{"coeffs": [-7.4179862436242465e-06, -6.191561987462345e-07, -0.28390411101958957, 0.08336762534144501], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.578463921900492e-06, 2.857170865289083e-07, 0.07874984353186516, 0.04299323539077892], "covariance": [[6.648476196542467e-12, -2.4894261150018677e-13, 1.9550347126408916e-07, -9.658519035751178e-08], [-2.4894261150018703e-13, 8.163425353456767e-14, -4.8870598952373375e-09, 6.131559893571362e-09], [1.9550347126408914e-07, -4.8870598952373276e-09, 0.006201537856293246, -0.0027997436063348247], [-9.658519035751176e-08, 6.131559893571359e-09, -0.002799743606334825, 0.001848418289366925]]}