SPSS® 12.0 Command Syntax Reference

204 Syntax Reference
SAVE Subcommand
The SAVE subcommand is used to add the transformed variables (category indicators
replaced with optimal quantifications), the object scores, and the approximation to the
working data file. Excluded cases are represented by a dot (the system-missing symbol) on
every saved variable.
TRDATA Transformed variables. Missing values specified to be treated as passive are
represented by a dot.
OBJECT Object (component) scores.
APPROX Approximation for variables that do not have optimal scaling level MNOM.
• Following TRDATA, a rootname and the number of dimensions to be saved for variables
specified as MNOM can be specified in parentheses.
• For variables that are not specified as MNOM, CATPCA adds two numbers separated by the
symbol _. For variables that are specified as MNOM, CATPCA adds three numbers. The
first number uniquely identifies the source variable names and the last number uniquely
identifies the CATPCA procedures with the successfully executed SAVE subcommands.
For variables that are specified as MNOM, the middle number corresponds to the dimension
number (see the next bullet for more details). Only one rootname can be specified,
and it can contain up to five characters for variables that are not specified as MNOM and
three characters for variables that are specified as MNOM (if more than one rootname is
specified, the first rootname is used; if a rootname contains more than five/three characters,
the first five/three characters are used at most).
• If a rootname is not specified for TRDATA, rootname TRA is used to automatically generate
unique variable names. The formulas are ROOTNAMEk_n and ROOTNAMEk_m_n, where
k increments from 1 to identify the source variable names by using the source variables’
position numbers in the ANALYSIS subcommand, m increments from 1 to identify the
dimension number, and n increments from 1 to identify the CATPCA procedures with the
successfully executed SAVE subcommands for a given data file in a continuous SPSS
session. For example, with three variables specified on ANALYSIS, LEVEL = MNOM for the
second variable, and two dimensions to save, the first set of default names, if they do not
exist in the data file, would be TRA1_1, TRA2_1_1, TRA2_2_1, and TRA3_1. The next set
of default names, if they do not exist in the data file, would be TRA1_2, TRA2_1_2,
TRA2_2_2, and TRA3_2. However, if, for example, TRA1_2 already exists in the data file,
then the default names should be attempted as TRA1_3, TRA2_1_3, TRA2_2_3, and
TRA3_3. That is, the last number increments to the next available integer.
• Following OBJECT, a rootname and the number of dimensions can be specified in
parentheses to which CATPCA adds two numbers separated by the symbol _. The first
number corresponds to the dimension number. The second number uniquely identifies the
CATPCA procedures with the successfully executed SAVE subcommands (see the next
bullet for more details). Only one rootname can be specified, and it can contain up to five
characters (if more than one rootname is specified, the first rootname is used; if a
rootname contains more than five characters, the first five characters are used at most).
• If a rootname is not specified for OBJECT, rootname OBSCO is used to automatically
generate unique variable names. The formula is ROOTNAMEm_n, where m increments
from 1 to identify the dimension number and n increments from 1 to identify the CATPCA