{"coeffs": [-1.0550552101912812e-07, 3.4704021598428274e-09, -0.3305643515902945, 0.01616080750573073], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.346965763489488e-09, 4.931403248044056e-09, 0.012127018536591039, 0.010494854772480364], "covariance": [[8.736576898384465e-17, -1.4681270222995315e-18, 3.4813089598992734e-11, -2.689176280941343e-11], [-1.4681270222995318e-18, 2.4318737994819467e-17, 1.1562330728832028e-11, 1.0123570159194412e-11], [3.481308959899272e-11, 1.1562330728832028e-11, 0.00014706457858682266, 1.0666626498819771e-05], [-2.689176280941343e-11, 1.0123570159194412e-11, 1.0666626498819771e-05, 0.00011014197669545389]]}