{"coeffs": [-3.5680983258171296e-07, 0.16240652237422065, 1.8452069752012694, 0.1230132439616619], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.123689946600011e-07, 6377.283874079073, 4847.677510729328, 0.11395677475120153], "covariance": [[1.7004818775690004e-13, -0.0016269392682168933, -0.001236786982413726, -3.5075416516226084e-08], [-0.0016269392694275274, 40669749.61058899, 30915015.53903867, 695.3851576902186], [-0.0012367869833608814, 30915015.5390368, 23499977.24803089, 528.6067180493822], [-3.5075416528729025e-08, 695.3851575086437, 528.6067179115735, 0.012986146511696082]]}