{"coeffs": [-3.3795929880971417e-06, 1.7939120727428314e-05, 0.3523083520939607, 0.2370269041797988], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.029307162990666e-06, 1.1930181335033454e-06, 0.0143104329943735, 0.029219303530273244], "covariance": [[1.0594732357838932e-12, -1.088438721978898e-12, -5.297012204475299e-10, -2.9068933065284633e-08], [-1.0884387219789001e-12, 1.423292266867806e-12, 8.36258550275352e-09, 3.372722406052048e-08], [-5.297012204475876e-10, 8.362585502753577e-09, 0.0002047884924864537, 0.00011384540650407342], [-2.906893306528467e-08, 3.3727224060520445e-08, 0.00011384540650407185, 0.0008537676987942384]]}