{"coeffs": [-6.3787286879383965e-06, -5.539035408763355e-07, 0.6429996661363521, 0.015681597635448855], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.2881790225760994e-06, 1.4332226597101817e-06, 0.030039304638009794, 0.055776589044416215], "covariance": [[1.6594051942051147e-12, -3.0437616143851146e-13, 3.0742863648692087e-09, -2.4674946045523617e-08], [-3.043761614385114e-13, 2.0541271923067274e-12, 2.126334007540702e-08, 4.177499225606683e-08], [3.0742863648692116e-09, 2.1263340075407018e-08, 0.0009023598231351568, 0.0009198068083765491], [-2.467494604552362e-08, 4.177499225606683e-08, 0.0009198068083765494, 0.0031110278854296907]]}