EWMA_S2, 两个参数, lambda,L 一维
EWMA_ln(S2), 两个参数, lambda,L 一维
AEWMA_S2, ??
AEWMA_ln(S2), 三个参数, lambda,r,h 一维
ACUSUM_ln(S2), ?? ??
ACUSUM_ln(S2),比较麻烦的是,
没有文献可参考比对,
来验证程序的正确性.
如果方便的话看能不能找到:
Brook,D.and Evans,D.A.(1972)An Approach to the Probability Distribution of CUSUM Run Length
Howell, D.K., 1987. A CUSUM scheme for the control of process variance
Srivastava, M.S., Chow, W., 1992. Comparison of the CUSUM procedure with other procedures
that detect an increase in the variance and a fast
accurate approximation for the ARL of the cusum procedure