{"coeffs": [-1.4711856381056498e-06, 1.4906392719898028e-05, 0.37105834569443363, 0.14635397413515272], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.785153391483019e-07, 1.5858990863198509e-06, 0.022027983369860685, 0.01812824364804956], "covariance": [[2.2897692980021446e-13, -6.891013855075381e-13, -8.652074492820053e-09, -8.421034553614513e-09], [-6.891013855075354e-13, 2.515075911990138e-12, 3.43644726015326e-08, 2.8083148930712313e-08], [-8.652074492820002e-09, 3.4364472601532545e-08, 0.0004852320513428589, 0.000370610955080614], [-8.421034553614493e-09, 2.8083148930712356e-08, 0.00037061095508061524, 0.00032863321776304923]]}