{"coeffs": [-2.224565647154346e-07, 0.7200777294525296, 1.5288378218118368, 0.08034719643118561], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [4.292923423604833e-07, 73424.10831018686, 8221.644092874516, 0.06600401988097798], "covariance": [[1.842919152093504e-13, -0.014678862591636439, -0.001643706002407539, -1.663124026319379e-08], [-0.014678862557555922, 5391099681.146051, 603666886.1413814, 4628.2108953433235], [-0.0016437059988343905, 603666886.1414181, 67595431.58989842, 518.2469845875779], [-1.6631240243998235e-08, 4628.2108985710065, 518.2469849480563, 0.004356530640448537]]}