The rgsp package provides functionalities to calculate
Sample Number and Average Sample Number for a
Repetitive Group Sampling Plan based on Cpk as given in
Aslam et al. (2013).
Aslam, M., Wu, C., Jun, C., Azam, M. and Itay, N. (2013). Developing a variables repetitive group sampling plan based on process capability index Cpk with unknown mean and variance. Journal of Statistical Computation and Simulation. 83(8):1507-1517. (https://www.tandfonline.com/doi/abs/10.1080/00949655.2012.663374)