{"coeffs": [-3.440444428671288e-07, 0.29009264807179946, 1.9925033871543227, 0.16023442150552805], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.736673939611032e-07, 171.83985968374554, 95.85976214629441, 0.013209712769927088], "covariance": [[2.2436080010190295e-13, -6.187066278393764e-05, -3.452123441665688e-05, -5.438281620193945e-09], [-6.187066279007683e-05, 29528.937376129357, 16472.527290432357, 2.1907429615081178], [-3.452123442024356e-05, 16472.527290431593, 9189.09399874414, 1.222194167025645], [-5.4382816204660565e-09, 2.1907429614191285, 1.2221941669759215, 0.00017449651146397477]]}