{"coeffs": [-8.552528609027721e-08, 0.1546698642036331, 1.2688416190085976, 0.0654920256019189], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [3.4705638883900146e-08, 410.9591187937416, 174.70115016260996, 0.005725454003796171], "covariance": [[1.2044813703396819e-15, -5.755449398781767e-06, -2.446917432878046e-06, -1.0200710226596431e-10], [-5.755449392628004e-06, 168887.3973197286, 71795.03040380607, 2.2524504702701766], [-2.4469174302436293e-06, 71795.03040381301, 30520.491868138797, 0.957557245337917], [-1.020071022077796e-10, 2.252450470968116, 0.9575572456345571, 3.2780823549585604e-05]]}