{"coeffs": [-8.208377725089744e-08, 0.1791642635170049, 1.3065740287779475, 0.06822379033769695], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.482951401224478e-08, 391.75182130037746, 149.67715499487971, 0.004187181657902981], "covariance": [[6.165047660842599e-16, -4.0321835451515884e-06, -1.540713975669774e-06, -5.4780569017729624e-11], [-4.032183541423317e-06, 153469.48949216286, 58636.29787716193, 1.5692370555221793], [-1.540713974260435e-06, 58636.29787716608, 22403.250727361246, 0.5995755760355014], [-5.478056899171732e-11, 1.569237055932006, 0.5995755761916729, 1.753249023627916e-05]]}