{"coeffs": [-3.839148971359962e-08, 3.546568822009754e-06, 0.3975317894057763, 0.08652434070254991], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.957953653745448e-08, 2.1597265770339442e-07, 0.010315480695958772, 0.0054445495811544595], "covariance": [[8.749489817706046e-16, -4.847511685720285e-15, -2.096346314177904e-10, -1.4246333125604994e-10], [-4.847511685720294e-15, 4.664418887546758e-14, 2.2071997921597356e-09, 1.1157285842112306e-09], [-2.0963463141779065e-10, 2.207199792159736e-09, 0.00010640914198869808, 5.175145829094755e-05], [-1.424633312560501e-10, 1.11572858421123e-09, 5.175145829094751e-05, 2.9643120141649197e-05]]}