{"coeffs": [-4.055887973946341e-08, 0.21338519594868227, 1.2556830408688557, 0.06431856769115454], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.626986989144589e-08, 300.78560810062686, 90.93959815067024, 0.003050106390585229], "covariance": [[6.901060641134953e-16, -3.1501577869384667e-06, -9.525157070337217e-07, -4.0656876090874545e-11], [-3.1501577859637698e-06, 90471.9820404639, 27353.32220419597, 0.8784936724334997], [-9.525157067012984e-07, 27353.322204196946, 8270.010511805385, 0.2656116666422823], [-4.0656876083234194e-11, 0.8784936725306693, 0.265611666671744, 9.303148993888854e-06]]}