Output Data Sets :: SAS/QC(R) 12.1 User's Guide

Output Data Sets

OUTHISTORY= Data Set
OUTTABLE= Data Set

OUTHISTORY= Data Set

The OUTHISTORY= data set contains all the variables in the input data set plus new variables that contain the principal component scores, residuals, and other computed values listed in Table 13.7.

Table 13.7: Computed Variables in the OUT= Data Set

Variable	Description
Prin1–Prinj	Principal component scores
R_–R_	Residuals
_NOBS_	Number of observations used in the analysis
_SPE_	Squared prediction error (SPE)
_TSQUARE_	statistic computed from principal component scores

The names of the score variables are formed by concatenating the value given by the PREFIX= option (or the default Prin, if PREFIX= is not specified) and the numbers 1, 2, …, j, where j is the number of principal components in the model.

The names of the residual variables are formed by concatenating the value given by the RPREFIX= option (or the default R_, if RPREFIX= is not specified) and the names of the process variables used in the analysis. Residual variables are created only when the number of principal components in the model is less than the number of process measurement variables in the input data set.

OUTTABLE= Data Set

You can save multivariate control chart statistics, control limits, and related information by specifying the OUTTABLE= option in an SPECHART or TSQUARECHART statement. An OUTTABLE= data set contains the variables listed in Table 13.8.

Table 13.8: Variables in an OUTTABLE= Data Set

Variable	Description
`_ALPHA_`	Probability ( $\alpha$ ) of exceeding control limits
`_EXLIM_`	Flag to indicate control limit was exceeded
`_LCL_`	Lower control limit
`_MEDIAN_`	Center line
`_SPE_`	Squared prediction error (SPE) statistic (SPECHART statement only)
time	TIME variable, if specified
`_TSQUARE_`	statistic (TSQUARECHART statement only)
`_UCL_`	Upper control limit

The MVPMONITOR Procedure

Output Data Sets

OUTHISTORY= Data Set

OUTTABLE= Data Set