{"coeffs": [-1.7540753889860693e-07, -3.867042979621925e-10, -0.2624846090043769, 0.04958682968115595], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.0443152457909e-08, 2.5454249288885878e-08, 0.06928051220853956, 0.05998504269020536], "covariance": [[2.544511629891851e-15, -1.759341329951199e-16, 2.0015082507550996e-09, -1.7298437379895493e-09], [-1.7593413299511987e-16, 6.479188068607473e-16, 4.019379582949132e-10, 5.387396286882029e-10], [2.0015082507550996e-09, 4.019379582949133e-10, 0.0047997893718775995, -0.0010046081938984643], [-1.7298437379895491e-09, 5.387396286882029e-10, -0.0010046081938984645, 0.0035982053465457597]]}