Quality and Process Methods • Multivariate Control Charts • Multivariate Control Chart Platform Options
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Multivariate Control Chart Platform Options
The following options are available from the platform red triangle menu:
T Square Chart
Shows the T2 chart. Hotelling’s T2 chart is a multivariate extension of the X-bar chart that takes correlation into account.
T Square Partitioned
Constructs multivariate control charts based on the principal components of Y. Specify the number of major principal components for T2. See T Square Partitioned.
Set Alpha Level
Set the α level used to calculate the control limit. The default is α=0.05.
Show Covariance
Shows the covariance. Covariance is a measure of the linear relationship between two variables.
Show Correlation
Shows the correlation report.
Show Inverse Covariance
Shows the inverse, or if it is singular, a generalized inverse of the covariance matrix.
Show Inverse Correlation
Shows the inverse, or if it is singular, a generalized inverse of the correlation matrix.
Show Means
Shows the means for each group.
Save T Square
Creates a new column in the data table containing T2 values.
Save T Square Formula
Creates a new column in the data table. Stores a formula in the column that calculates the T2 values.
Save Target Statistics
Creates a new data table containing target statistics for the process. Target statistics include: sample size, the number of samples, mean, standard deviation, and any correlations.
Change Point Detection
(Not available for sub-grouped data) Shows a Change Point Detection plot of test statistics by row number and indicates the row number where the change point appears. See Change Point Detection.
Principal Components
Shows reports showing eigenvalues and their corresponding eigenvectors. Principal components help you understand which of the many variables you might be monitoring are primarily responsible for the variation in your process. See Principal Components.
Save Principal Components
Creates new columns in the data table that contain the scaled principal components.

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Help created on 7/12/2018