The MVPMONITOR Procedure

TSQUARECHART Statement

TSQUARECHART < / options>;

The TSQUARECHART statement produces a $T^2$ chart based on a principal component model that the MVPMODEL procedure computes. In a Phase I analysis, the $T^2$ statistics are computed by PROC MVPMODEL and read from the HISTORY= data set. In a Phase II analysis, the $T^2$ statistics are computed by the MVPMONITOR procedure from information about the principal component model specified in the LOADINGS= data set.

Table 13.3 summarizes the options available in the TSQUARECHART statement. For detailed descriptions, see the section Common Chart Statement Options.

Table 13.3: TSQUARECHART Statement Options

Option	Description
ALPHA=	Specifies the probability used to compute $T^2$ chart limits
CONTRIBUTIONS	Creates contribution plots for points outside the control limits
EXCHART	Specifies that a $T^2$ chart be displayed only if there are points lying outside the control limits
INTERVAL=	Specifies the time interval between consecutive positions on a $T^2$ chart
LIMITDIST=	Specifies the distribution that is used to compute the control limits
NOCHART	Suppresses creation of a $T^2$ chart
NOHLABEL	Suppresses the horizontal axis label of a $T^2$ chart
NOVLABEL	Suppresses the vertical axis label of a $T^2$ chart
NPANELPOS=	Specifies the number of horizontal axis plotting positions per panel
ODSFOOTNOTE=	Adds a footnote to a $T^2$ chart
ODSFOOTNOTE2=	Adds a secondary footnote to a $T^2$ chart
ODSTITLE=	Specifies a title for a $T^2$ chart
ODSTITLE2=	Specifies a secondary title for a $T^2$ chart
OUTTABLE=	Creates a SAS data set that contains a summary of a $T^2$ chart
OVERLAY	Specifies that separate sequences of observations be plotted on a single $T^2$ chart
SERIESVALUE=	Specifies SERIES variable values selecting sequences to be plotted
TOTPANELS=	Specifies the number of panels used to display a $T^2$ chart

LIMITDIST=BETA | CHISQ | F

specifies the distribution that is used to compute control limits for the $T^2$ chart. You can specify the following values:

BETA: selects a beta distribution
CHISQ: selects a $\chi ^2$ distribution
F: selects an F distribution

See the section Computing T-Square Control Limits for a description of how $T^2$ chart control limits are computed.