{"coeffs": [-3.1100247084953213e-06, 6.890478819322197e-05, 0.333337855461867, 0.14630642177496245], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [5.220041488394492e-07, 1.246454537861638e-06, 0.00493746861679455, 0.004838386621445197], "covariance": [[2.724883314055979e-13, -4.574536477818606e-13, -8.527742302677813e-10, -2.2049653820735133e-09], [-4.574536477818607e-13, 1.553648914955869e-12, 5.4301169536555664e-09, 5.516367989555332e-09], [-8.527742302677813e-10, 5.430116953655567e-09, 2.4378596341831086e-05, 1.6280793873984637e-05], [-2.204965382073513e-09, 5.516367989555332e-09, 1.6280793873984637e-05, 2.3409985098579863e-05]]}