{"coeffs": [-0.4573926421758459, -0.2456916389019717, 4.47015027688014, 0.10004992565153611], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1379310412722887e-07, 0.0, 0.0, 0.0], "covariance": [[0.003694884203093221, 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]]}