{"coeffs": [-3.973986068806069e-07, 0.22237613124531705, 1.806346812826702, 0.1444186722895658], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.981410212328431e-07, 102.32108497168396, 66.92732481806766, 0.01268207406308623], "covariance": [[2.481444770348998e-13, -3.6546354223897974e-05, -2.3911948499191747e-05, -5.269835971993728e-09], [-3.6546354223199294e-05, 10469.60442978257, 6848.075868775184, 1.2484638674979778], [-2.3911948498772534e-05, 6848.075868775274, 4479.2668073031355, 0.8167076340419235], [-5.269835971952025e-09, 1.248463867508808, 0.8167076340490491, 0.00016083500254160447]]}