{"coeffs": [1.9606239759750078e-07, 1.3402943628423283, 1.6997473636554996, 0.11034649254996576], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.69992297589694e-07, 4228.044719622043, 349.6154424561583, 0.013110161479505245], "covariance": [[4.4888967882951704e-13, -0.001686299623733466, -0.00013945239920676354, -6.351997928429208e-09], [-0.0016862996260811607, 17876362.151123837, 1478189.7167821664, 53.017665128793155], [-0.0001394523994027227, 1478189.7167819096, 122230.95760381533, 4.384155025868634], [-6.351997933152126e-09, 53.01766510273594, 4.38415502371235, 0.00017187633401870316]]}