We also cover the equations and constants for the X-bar and R (Range) chart, and work an example of this important control chart. Industry 4.0 Academy Disclaimer The courses offered in this catalog ...

Monitoring multivariate quality variables or data streams remains an important and challenging problem in statistical process control (SPC). Although the multivariate SPC has been extensively studied ...

A multivariate extension of the exponentially weighted moving average (EWMA) control chart is presented, and guidelines given for designing this easy-to-implement multivariate procedure. A comparison ...