{"coeffs": [-4.510616884236876e-08, 3.195302514434114e-07, 0.29325481982896373, 0.04807565518727096], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.2560299994778874e-08, 4.1724185947840826e-08, 0.019247113013879606, 0.019487958135699868], "covariance": [[1.0601731357499971e-15, -5.670310916415573e-16, 1.9460882060056373e-10, -4.456313851792028e-10], [-5.670310916415573e-16, 1.7409076930099977e-15, 4.482075246486265e-10, 6.106532605872404e-10], [1.9460882060056363e-10, 4.482075246486266e-10, 0.00037045135936905366, 6.17308670386765e-05], [-4.4563138517920274e-10, 6.106532605872404e-10, 6.173086703867644e-05, 0.0003797805122987906]]}