{"coeffs": [-5.4874688896499704e-08, 0.005581634575083409, 1.5942666482859906, 0.13366841336119803], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.239740791544274e-07, 23.933107165456153, 574.79875217234, 0.0976119291949009], "covariance": [[1.536957230218823e-14, -2.660496403249368e-06, -6.39043593769499e-05, -1.1571968907436484e-08], [-2.660496403241046e-06, 572.7936185932086, 13756.71964392973, 2.2940547795082846], [-6.39043593768672e-05, 13756.719643929726, 330393.60549887904, 55.09888392715233], [-1.1571968907459507e-08, 2.294054779508284, 55.09888392715232, 0.009528088721150347]]}