{"coeffs": [-0.3882244353572385, 0.12788785949299944, -75.26076319736526, 2.1689864258109224], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.0, 3.959994585034741e-08, 0.0, 0.0], "covariance": [[0.0, 0.0, 0.0, 0.0], [0.0, 0.0016428582320239947, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0]]}