If you want to analyze a partial correlation or
covariance matrix, specify the names of the numeric
variables to be partialled out in the PARTIAL statement.
The PRINCOMP procedure computes the principal components of the residuals from
the prediction of the VAR variables by the PARTIAL variables.
If you request an OUT= or OUTSTAT= data set,
the residual variables are named by prefixing
the characters R_ to the VAR variables.
Thus, the number of characters required to distinguish the
VAR variables should be, at most, two characters fewer than the
current name length defined by the VALIDVARNAME= system option.
- PARTIAL variables ;
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