{"coeffs": [-0.4859834267027017, -0.22757259217130305, 4.044467690819264, 0.04885064903169428], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.37333789849676e-08, 0.0, 0.0, 0.0], "covariance": [[0.005503830998365168, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0]]}