{"coeffs": [-1.6974884142467995e-07, 0.3277960185745165, 1.8535879687086794, 0.14498298809762566], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [1.2474945918978726e-06, 459.90699830624004, 204.62836175027695, 0.028918694679706636], "covariance": [[1.55624275681444e-12, -0.0004123832117766361, -0.00018352651558731058, -3.014554014245375e-08], [-0.0004123832118343722, 211514.44709105586, 94110.01054789203, 12.797546995260713], [-0.00018352651561428664, 94110.01054788608, 41872.766432602206, 5.694594642693748], [-3.0145540144653656e-08, 12.797546994560104, 5.694594642381877, 0.000836290901978093]]}