{"coeffs": [-2.996013451232106e-07, 1.0725909804795404, 1.9672623473015378, 0.1386351444592027], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.56913972600421e-07, 2871.4271067723903, 372.6655494435551, 0.015540456317212528], "covariance": [[4.3153596739766667e-13, -0.0013190066331842242, -0.0001712003425648612, -8.360984643162034e-09], [-0.0013190066328516888, 8245093.62950726, 1070081.9536736275, 42.88558880179585], [-0.00017120034252083948, 1070081.9536736668, 138879.61174206683, 5.566046723909001], [-8.360984642069294e-09, 42.88558880583734, 5.566046724433501, 0.0002415057825471908]]}