{"coeffs": [-3.2507168122047404e-07, 1.0923736859529052e-08, -0.26929811954554506, 0.018707395243154505], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.896113054694777e-08, 6.192825176218377e-08, 0.05016044506758301, 0.044374454037829046], "covariance": [[9.79330535913004e-15, -2.2413345553940324e-16, 1.6755350397381543e-09, -1.4098705749905222e-09], [-2.2413345553940324e-16, 3.835108366320418e-15, 5.684750286698937e-10, 5.068308068049826e-10], [1.6755350397381541e-09, 5.684750286698935e-10, 0.0025160702493780126, -0.00029326112411515897], [-1.4098705749905222e-09, 5.068308068049826e-10, -0.00029326112411515897, 0.0019690921711554023]]}