{"coeffs": [-1.1377418235854587e-06, 1.90524316135061e-05, 0.39389758456802354, 0.2553446523538322], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.14834090961465e-07, 2.384465958314724e-06, 0.060030271327097776, 0.04029477473700416], "covariance": [[2.6505414121611807e-13, -8.832336671439566e-13, -1.765288044569055e-08, -1.8072433119616706e-08], [-8.832336671439586e-13, 5.685677906361755e-12, 1.392093830273019e-07, 8.945065488271347e-08], [-1.765288044569062e-08, 1.3920938302730201e-07, 0.0036036334756049775, 0.0020796638061397056], [-1.8072433119616733e-08, 8.94506548827134e-08, 0.002079663806139702, 0.0016236688711059087]]}