{"coeffs": [-1.1485364028868531e-07, -3.819885401612019e-09, -0.3728163613274031, 0.01750755728223998], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.6293214162947488e-08, 1.0834627664586818e-08, 0.028257454132237833, 0.027961512116887365], "covariance": [[6.913331110186223e-16, -1.535385545120948e-17, 3.0563481355233177e-10, -3.002115765097106e-10], [-1.535385545120947e-17, 1.1738915663023e-16, 4.619824421668538e-11, 5.644622225096918e-11], [3.0563481355233177e-10, 4.619824421668538e-11, 0.000798483714035525, -0.00010959173717732992], [-3.002115765097106e-10, 5.644622225096919e-11, -0.0001095917371773299, 0.000781846159862839]]}