{"coeffs": [-3.1311236785075046e-07, 0.9444816190446631, 2.141750099660922, 0.1555152820675092], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [2.1771917485860983e-06, 9495.224648879926, 1569.7747688224572, 0.06306159677233851], "covariance": [[4.740163910111392e-12, -0.015465742267250128, -0.002557017865975021, -1.1802831155563579e-07], [-0.015465742268332461, 90159291.13269691, 14905363.997020563, 577.3522674154748], [-0.0025570178661305956, 14905363.99702042, 2464192.824831599, 95.45208524621277], [-1.1802831155858086e-07, 577.3522674006398, 95.45208524376885, 0.003976764987477014]]}