{"coeffs": [-4.2639407644968536e-08, 1.7423012338373712e-06, 0.38743574185054436, 0.11906557415985995], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.2521115759097238e-07, 1.0494491490753761e-06, 0.12273470226317594, 0.08044221954463891], "covariance": [[5.0720065503465796e-14, -2.04239276439786e-13, -2.1807949946416282e-08, -1.7218286077626183e-08], [-2.042392764397861e-13, 1.101343516495031e-12, 1.27427974728382e-07, 8.165548853752369e-08], [-2.1807949946416275e-08, 1.2742797472838198e-07, 0.015063807139630445, 0.009184954221548431], [-1.7218286077626177e-08, 8.165548853752366e-08, 0.009184954221548431, 0.006470950685267886]]}