This article is the first in a series of two articles that applies two-stage short-run control charting to (X, MR) charts. Theory is developed and then used to derive the control chart factor equations. In the sequel, the control chart factor calculations are computerized and an example is presented.
Elam, Matthew E. and Case, Kenneth E.
"Two-Stage Short-Run (X, MR) Control Charts,"
Journal of Modern Applied Statistical Methods: Vol. 7
, Article 23.
Available at: http://digitalcommons.wayne.edu/jmasm/vol7/iss1/23