{"coeffs": [-1.4619711182683588, 0.15133181770475387, -0.29292020769826305, 0.2587717540692215], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.626347364487176e-07, 2.3432548614485208e-07, 2.311859875217605e-07, 1.756390221596027e-07], "covariance": [[0.2431114599150932, -0.057376878620410646, 0.06398519802956976, -0.04775207289685662], [-0.057376878620410646, 0.017938684851601865, -0.013578383116086617, 0.01287355812790912], [0.06398519802956976, -0.013578383116086617, 0.017461219091077677, -0.012062716791583229], [-0.04775207289685663, 0.01287355812790912, -0.01206271679158323, 0.010078445877721883]]}