{"coeffs": [-1.5059492311643916e-08, 0.1241862987915678, 1.7263047559275906, 0.10989437797324614], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.512752007535872e-08, 498.76445096446105, 444.5449746918594, 0.012615922625440486], "covariance": [[2.0364930681519043e-15, -1.3354703138242947e-05, -1.190380702424401e-05, -4.106347544749098e-10], [-1.3354703111823368e-05, 248765.97754588025, 221723.22944934794, 6.01804508600405], [-1.1903807000594011e-05, 221723.2294493898, 197620.2345237859, 5.363975367967576], [-4.1063475405637174e-10, 6.018045090141757, 5.363975371654358, 0.00015916150369110117]]}