{"coeffs": [-1.2013112649913632e-06, 0.823936072622234, 2.109491403123626, 0.1574573192370239], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.352028826023394e-07, 1425.2350503429434, 273.37588577372065, 0.015248597350432103], "covariance": [[4.034827020663213e-13, -0.0006819535654686741, -0.00013081854026938535, -8.365795683512919e-09], [-0.0006819535659934704, 2031294.9487260527, 389624.8905485831, 20.963877386773248], [-0.0001308185403706462, 389624.8905485223, 74734.37492256636, 4.02125694373176], [-8.36579568675287e-09, 20.96387738033711, 4.02125694249741, 0.00023251972115560495]]}