Use Multivariate EWMA Chart to simultaneously monitor two or more related process characteristics in an exponentially weighted control chart. In the multivariate EWMA chart, each plotted point includes weighting from all previous data, which helps you to detect small process shifts quicker than you can with other multivariate control charts. The Multivariate EWMA chart is the multivariate counterpart to the EWMA chart.
To create a multivariate EWMA chart, choose .
If variables are not correlated, use EWMA Chart.