{"coeffs": [-0.37643626374319744, -0.1874645579965864, 8.92588729393906, 0.02081120138903053], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.830198210772792e-08, 0.0, 0.0, 0.0], "covariance": [[0.008389580515148041, 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]]}