Store statistics for T²-Generalized Variance Chart

Stat > Control Charts > Multivariate Charts > T<sup>2</sup>-Generalized Variance > T²-GV Options > Storage

You can save statistics from your analysis to the worksheet so that you can use the statistics in other analyses, graphs, and macros. Minitab stores the statistics after the last column of data. The names of the storage columns end with a number that increases as you store the same statistic multiple times.

Store these estimates for each chart

If your control chart includes stages, Minitab stores a separate value for each stage.
Means
Store the estimated or historical process mean. Minitab stores these values in the column MEAN.
Covariance matrices
Store the estimated covariance matrices. Minitab stores the values in the matrix COVA. If your control chart includes stages, Minitab stores a separate matrix for each stage.

Store these values for each point

Point plotted
Store the value of each plotted point. Minitab stores these values in the columns PPOI and PPOI_1.
Center line value
Store the center line values. Minitab stores these values in the column CENL and CENL_1.
Control limit values
Store the control limit values. Minitab stores these values in the column CONL, CONL_1, and so on.
Stage
Store the name or the number of each stage. Minitab stores these values in the column STAG.
Subgroup size
Store the size of each subgroup. Minitab stores these values in the column SSIZ.
Test results
Store the results of each test for special causes. Minitab stores a 1 if the point fails a test and a 0 if the point does not fail the test. Minitab stores these values in the columns TRES, TRES_1, and so on.
Decomposed T² values
Store the decomposed T2 values. One value is stored for each plotted point. Minitab stores one column of values for each variable in the chart. The column names begin with DECO.
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