{"coeffs": [-1.767921924776009e-06, 0.0005071344307694709, 0.9600509335242088, 0.16555395183320287], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.5059184686056996e-07, 0.00021153074226349568, 0.08913254637565415, 0.006186068932911255], "covariance": [[6.279627371299133e-14, -4.097701145006256e-11, -1.7644201949514613e-08, -1.3659476473056942e-09], [-4.0977011450064904e-11, 4.4745254922545434e-08, 1.8840143949502376e-05, 1.262038556543635e-06], [-1.764420194951564e-08, 1.884014394950232e-05, 0.007944610823408138, 0.0005369092962186323], [-1.3659476473057345e-09, 1.2620385565436063e-06, 0.0005369092962186219, 3.8267448842729786e-05]]}