{"coeffs": [-4.5159316702510503e-07, -1.584642239633146e-08, -0.25137469825449527, 0.05172804675712139], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.824589673079068e-08, 2.527205813061792e-08, 0.02770470544712208, 0.024057691671946598], "covariance": [[2.3276665513581188e-15, -1.749730415267435e-16, 7.621092700125417e-10, -6.663330826050773e-10], [-1.7497304152674353e-16, 6.386769221573314e-16, 1.6541821687373957e-10, 2.2282589576454976e-10], [7.621092700125416e-10, 1.654182168737396e-10, 0.0007675507039117957, -0.00015678394606648488], [-6.663330826050772e-10, 2.228258957645497e-10, -0.00015678394606648488, 0.0005787725285824487]]}