{"coeffs": [1.4290945605913671e-08, 0.4883126286418857, 1.8160877501724444, 0.1363185248567391], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [7.187820917817953e-07, 484.95554281419226, 136.00620513108677, 0.014508810625328647], "covariance": [[5.166476954662132e-13, -0.00024107457376003956, -6.762280435787845e-05, -8.47270291509082e-09], [-0.00024107457375348843, 235181.87850620784, 65956.9607824896, 6.758803476119328], [-6.762280435574737e-05, 65956.96078249038, 18497.687834159253, 1.8956554782449113], [-8.472702914928025e-09, 6.758803476206142, 1.8956554782698578, 0.00021050558576164944]]}