{"coeffs": [-9.255308838434667e-07, -2.103645052895906e-08, -0.3052213317751269, 0.08191026348937912], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.9370471024911923e-08, 1.622313113953876e-08, 0.016004280193864556, 0.012302105468172458], "covariance": [[3.5248528297199062e-15, -2.9501542582806275e-16, 8.090582140100518e-10, -5.817480637180633e-10], [-2.9501542582806265e-16, 2.631899839706722e-16, -3.834698487538255e-12, 1.0119442940560393e-10], [8.090582140100517e-10, -3.834698487538255e-12, 0.0002561369845237253, -0.00012041394442694464], [-5.817480637180632e-10, 1.0119442940560392e-10, -0.00012041394442694464, 0.0001513417989500387]]}