{"coeffs": [-1.2036345329849207e-06, -2.790780202980645e-08, -0.36587778182760144, 0.0342207720322367], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.248738460250728e-07, 4.136592228528134e-08, 0.01657225954948671, 0.01397803747919119], "covariance": [[1.5593477421093587e-14, -5.370225846008358e-16, 1.3037160261916144e-09, -1.0378231058964207e-09], [-5.370225846008358e-16, 1.7111395265119355e-15, 1.0292206105943163e-10, 1.5047925698178278e-10], [1.3037160261916144e-09, 1.0292206105943165e-10, 0.0002746397865755534, -7.670346207112152e-05], [-1.0378231058964207e-09, 1.5047925698178278e-10, -7.670346207112152e-05, 0.0001953855317696736]]}