{"coeffs": [5.455205650011512e-08, 3.648695591598333e-07, 0.27406460756327383, 0.0019800437230539946], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.1796885247847545e-08, 4.179671734327151e-08, 219101.54531908897, 450274.7758807199], "covariance": [[1.746979616421736e-15, -1.137684414626128e-22, 2.5947350710838386e-05, -5.332426011584915e-05], [-1.1375248401373361e-22, 1.7469655806733333e-15, 3.515880412198747e-11, -0.0], [2.5947309975189462e-05, 0.0, 48005487161.2128, -98655899213.67216], [-5.332417424899636e-05, 8.586685278658373e-11, -98655899213.67216, 202747373794.4325]]}