{"coeffs": [-4.560100107549532e-06, 0.2451385298274945, 2.7528015890481483, 0.2705954298985246], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.6509379448377303e-06, 120.79911687957427, 134.87372232302792, 0.04526543903429141], "covariance": [[7.02747198738049e-12, -0.0002905905274243906, -0.00032451598174878437, -1.1584635393519039e-07], [-0.000290590527374044, 14592.426638885045, 16292.62455370687, 5.366373177021733], [-0.0003245159816923761, 16292.62455371017, 18190.92097326924, 5.992201087326155], [-1.158463539252871e-07, 5.366373177450846, 5.992201087804266, 0.002048959970967152]]}