{"coeffs": [-3.498987944325437e-07, -2.133760527811835e-08, -0.22605411725467736, 0.010579421945317729], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0033340944111531e-07, 7.079107236926494e-08, 0.05591695080998626, 0.03695509844244687], "covariance": [[1.0066793050078487e-14, -6.335964913318642e-17, 1.7894092116494328e-09, -1.11512188838177e-09], [-6.33596491331865e-17, 5.011375927190506e-15, 5.038042360342555e-10, 2.2735265300969734e-10], [1.7894092116494322e-09, 5.038042360342554e-10, 0.003126705387886423, -0.0010921595464761101], [-1.1151218883817697e-09, 2.2735265300969745e-10, -0.0010921595464761101, 0.001365679300890939]]}