{"coeffs": [-2.5042458333699414e-06, 0.3652490951639842, 2.037884563145401, 0.18112459580503315], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [2.0995403651962742e-06, 149.6615807285809, 74.80709738903525, 0.02233130393001516], "covariance": [[4.408069745088504e-12, -0.0002530687379427851, -0.00012653804552843512, -4.233831636536329e-08], [-0.0002530687379693648, 22398.588746177535, 11195.746593144462, 3.2383036438850943], [-0.00012653804554175576, 11195.746593143327, 5596.101819772605, 1.6188762612404115], [-4.2338316367560716e-08, 3.238303643739289, 1.6188762611678835, 0.0004986871352147105]]}