{"coeffs": [-1.260952450109225e-06, 0.5346194423801935, 2.275118084807968, 0.17891388103140365], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [7.501556513310489e-07, 938.8157155547458, 315.4430334545695, 0.022602194293649184], "covariance": [[5.627335012239103e-13, -0.0005641744256900368, -0.00018958217979038436, -1.5258438409570256e-08], [-0.0005641744256163983, 881374.9477725694, 296142.87316991045, 20.551806736591065], [-0.00018958217976588148, 296142.8731699204, 99504.30735502066, 6.905719175308154], [-1.525843840865976e-08, 20.551806737673225, 6.905719175671863, 0.0005108591868878677]]}