{"coeffs": [-1.1162266362729884e-07, 1.0819236310245006e-08, -0.2473563552766343, 0.03274435167940282], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.940816588612233e-08, 3.0271151116952935e-08, 0.08908691092326333, 0.077205483483698], "covariance": [[2.4411668562305823e-15, -1.0701372501957558e-16, 1.8719610689881313e-09, -1.5823827437789187e-09], [-1.0701372501957554e-16, 9.163425899454011e-16, 6.501620872963782e-10, 6.372151960455987e-10], [1.871961068988131e-09, 6.501620872963782e-10, 0.007936477697849454, -0.0007522203232704863], [-1.5823827437789182e-09, 6.372151960455988e-10, -0.0007522203232704863, 0.005960686679951564]]}