{"coeffs": [-8.826979585193235e-07, 0.21317489340089663, 1.9499259422112951, 0.1640332649024943], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.873043497172072e-07, 97.80518316214787, 75.78640908595533, 0.01653470377322654], "covariance": [[4.723872691401931e-13, -5.172038629212132e-05, -4.00885867045676e-05, -9.959002344822996e-09], [-5.172038628947537e-05, 9565.853853381293, 7412.302844106936, 1.561926809945346], [-4.00885867024232e-05, 7412.302844107217, 5743.579802143772, 1.2104404017103805], [-9.959002344573735e-09, 1.5619268099800732, 1.2104404017372539, 0.000273396428868352]]}