{"coeffs": [-1.8253298059084582e-06, 0.14253470645121671, 2.2454194466186608, 0.20157641852435326], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.90295333059259e-07, 28.601370142238995, 40.80079574207512, 0.010037076531079256], "covariance": [[8.427138039598613e-14, -6.969114028708166e-06, -9.944176177058771e-06, -2.698425068492884e-09], [-6.9691140295739545e-06, 818.0383740133602, 1166.9585386901458, 0.27916094467290437], [-9.944176178329051e-06, 1166.9585386900271, 1664.704933186535, 0.3982759298908371], [-2.6984250686647038e-09, 0.27916094465798463, 0.39827592986963123, 0.00010074290529074198]]}