{"coeffs": [-0.00231110200340851, 5.254302751802694e-09, -2.0136370785468234, 0.15135297193448288], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.80712351246951, 8.421598392147932e-09, 52.95457851155577, 0.048260666484605814], "covariance": [[0.6514483643811193, -2.9274884168909056e-10, 42.73920970852547, -0.007186334194025195], [-2.9274884164334747e-10, 7.092331947862862e-17, -2.181785129084879e-08, 2.7516662638214214e-10], [42.73920970852153, -2.181785129356039e-08, 2804.1873853365246, -0.4936891473827344], [-0.007186334193627953, 2.751666263824691e-10, -0.49368914735671776, 0.002329091929538355]]}