{"coeffs": [-1.1387094621888822e-06, 0.2625095755649303, 2.2138673808180496, 0.18694179012675274], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [5.538105405374302e-07, 153.75720818298927, 109.91452787777071, 0.016485381842818017], "covariance": [[3.067061148103607e-13, -6.948706298134305e-05, -4.968237867510938e-05, -8.312123232251565e-09], [-6.948706298344427e-05, 23641.279068227104, 16900.15013724046, 2.4586785363825645], [-4.96823786767002e-05, 16900.150137240205, 12081.203438593235, 1.7577413659267085], [-8.31212323236586e-09, 2.4586785363523664, 1.7577413659049288, 0.00027176781450351397]]}