{"coeffs": [2.8077055734842505e-09, 0.04313286248487353, 1.696780576242228, 0.07243588358634155], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.623503884751422e-09, 2467.2669826187266, 4147.691703684248, 0.01475208954536705], "covariance": [[1.3129780402808647e-17, -6.415304683230307e-06, -1.078476108110529e-05, -4.3474334696096746e-11], [-6.415304586129536e-06, 6087406.363520516, 10233462.794095047, 35.45039790579737], [-1.0784760918212766e-05, 10233462.794097176, 17203346.468811136, 59.595356095970054], [-4.347433431314311e-11, 35.45039808217213, 59.59535639251846, 0.00021762414595452782]]}