{"coeffs": [-4.012906734901848e-06, 0.00016200402340365568, 0.563578551139584, 0.1727697462436611], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.0745174081897643e-06, 1.193011800253023e-05, 0.023513462029137188, 0.009798672740742032], "covariance": [[1.1545876605028486e-12, -1.0152560814788426e-11, -1.9277107501769552e-08, -9.563272638084843e-09], [-1.0152560814788426e-11, 1.4232771555429587e-10, 2.7966760571873526e-07, 1.1166623689217285e-07], [-1.9277107501769555e-08, 2.7966760571873526e-07, 0.0005528828965956763, 0.0002183740871586856], [-9.56327263808485e-09, 1.1166623689217288e-07, 0.0002183740871586856, 9.601398748016096e-05]]}