{"coeffs": [8.035332572996261e-09, 2.1897744186428262e-08, 0.30820184388236693, 0.05757570283010413], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.024630091798655e-10, 1.4429154292752743e-09, 0.015694065782992164, 0.016031074364084106], "covariance": [[6.43946881102005e-19, -6.177482050503618e-19, 6.243205545656397e-13, -9.839568076476463e-12], [-6.177482050503614e-19, 2.082004936040649e-18, 1.6577153210238325e-11, 1.9448120791929004e-11], [6.243205545656426e-13, 1.6577153210238315e-11, 0.0002463037008008855, 0.00010658259541172789], [-9.83956807647646e-12, 1.9448120791929004e-11, 0.00010658259541172795, 0.0002569953452667946]]}