{"coeffs": [1.2111014233926948e-07, 1.11424619203708e-06, 0.5493476633651908, 0.07424016096925806], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.377954669077709e-08, 3.9996946427141187e-07, 0.07422025550671764, 0.04301405335292217], "covariance": [[2.892239642265473e-15, -8.442407036288463e-15, -9.923752750017857e-10, -1.3021432317463244e-09], [-8.44240703628846e-15, 1.5997557234956023e-13, 2.845931777252445e-08, 1.509096095391919e-08], [-9.923752750017855e-10, 2.845931777252445e-08, 0.00550864632748245, 0.002612635185637672], [-1.3021432317463234e-09, 1.5090960953919198e-08, 0.002612635185637674, 0.001850208785848035]]}