{"coeffs": [-4.433016624366426e-07, 0.24386059857539802, 1.784903068366167, 0.1436962460544238], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.873056956110864e-07, 114.38308335832586, 67.9219187867666, 0.01432068176841004], "covariance": [[4.723891192194393e-13, -5.620173082684914e-05, -3.3384440908068543e-05, -8.192650921591147e-09], [-5.6201730824971476e-05, 13083.489758557724, 7769.117646218284, 1.5757632454161006], [-3.338444090708865e-05, 7769.117646218456, 4613.387051676117, 0.9358295216644326], [-8.192650921462178e-09, 1.5757632454371722, 0.935829521676839, 0.00020508192631207172]]}