The function returns the estimated effective sample size.
References
Gong, L., and Flegal, J. M. A practical sequential stopping rule for high-dimensional Markov chain Monte Carlo. Journal of Computational and Graphical Statistics (to appear).
Vats, D., Flegal, J. M., and, Jones, G. L Multivariate Output Analysis for Markov chain Monte Carlo, arXiv preprint arXiv:1512.07713 (2015).
See Also
multiESS, which calculates multivariate effective sample size using a Markov chain and a function g.
ess which calculates univariate effective sample size using a Markov chain and a function g.