{"coeffs": [-2.630605443143452e-07, -8.863605801395583e-10, -0.34886270557446236, 0.053233170882268144], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.893340911317438e-08, 1.8780175972238776e-08, 0.049209199166909794, 0.039146258483677504], "covariance": [[4.7518148919642724e-15, -2.3799165362246194e-16, 2.6440381210063572e-09, -1.9534195883134917e-09], [-2.379916536224622e-16, 3.5269500954825466e-16, 7.443413783348198e-11, 2.612713078991089e-10], [2.6440381210063564e-09, 7.443413783348209e-11, 0.0024215452826485957, -0.0009910850951115632], [-1.9534195883134917e-09, 2.612713078991088e-10, -0.0009910850951115639, 0.001532429553270893]]}