{"coeffs": [-6.351242885960391e-07, 0.05101504431424404, 1.9097931833424224, 0.1717464806431302], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.1855411494948542e-07, 8.858420613390708, 30.057360819853415, 0.012090918885879187], "covariance": [[4.776590116135289e-14, -1.5227803062358023e-06, -5.169397389384621e-06, -2.3499827302821316e-09], [-1.5227803061512424e-06, 78.47161576374539, 266.26066679182725, 0.10359832930787936], [-5.169397389092814e-06, 266.26066679184487, 903.4449394548592, 0.35158814277142614], [-2.349982730217897e-09, 0.10359832931022969, 0.3515881427794034, 0.00014619031950491]]}