{"coeffs": [-1.344786454593119e-06, 0.24591037963082832, 2.075262154741589, 0.17469462510456668], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [5.446828523291047e-07, 110.48484651242853, 79.26978206332826, 0.014202535470008871], "covariance": [[2.966794096213693e-13, -4.770356468053879e-05, -3.423391801989294e-05, -6.914529211702514e-09], [-4.770356468798914e-05, 12206.90130887489, 8758.109090398593, 1.5186153808760487], [-3.423391802521789e-05, 8758.109090397786, 6283.69834836756, 1.0896699374900047], [-6.91452921224652e-09, 1.5186153807787768, 1.089669937420246, 0.0002017120137768601]]}