SPSS® 12.0 Command Syntax Reference

MATRIX Subcommand
OVERALS 1183
• Three single nominal variables, CAR1, CAR2, and CAR3, each with five categories, and
one numeric level variable, with ten categories, are analyzed.
• The DIMENSIONS subcommand requests results for three dimensions.
• SAVE adds the object scores from the first two dimensions to the working data file. The
names of these new variables will be DIM00001 and DIM00002, respectively.
The MATRIX subcommand is used to write category quantifications, coordinates, centroids,
weights, and component loadings to a matrix data file.
• The specification on MATRIX is keyword OUT and a file enclosed in parentheses.
• You can specify the file with either an asterisk (*) to indicate that the working data file is
to be replaced or with the name of an external file.
• All values are written to the same file.
• The matrix data file has one case for each value of each original variable.
The variables of the matrix data file and their values are:
ROWTYPE_ String variable containing value QUANT for the category quantifications,
SCOOR_ for the single-category coordinates, MCOOR_ for multiplecategory
coordinates, CENTRO_ for centroids, PCENTRO_ for projected
centroids, WEIGHT_ for weights, and LOADING_ for the component
scores.
LEVEL String variable containing the values (or value labels if present) of each
original variable for category quantifications. For cases with
ROWTYPE_=LOADING_ or WEIGHT_, the value of LEVEL is blank.
VARNAME_ String variable containing the original variable names.
VARTYPE_ String variable containing values MULTIPLE, SINGLE N, ORDINAL, or
NUMERICAL, depending on the level of optimal scaling specified for the
variable.
SET_ The set number of the original variable.
DIM1...DIMn Numeric variables containing the category quantifications, the singlecategory
coordinates, multiple-category coordinates, weights, centroids,
projected centroids, and component loadings for each dimension. Each one
of these variables is labeled DIMn, where n represents the dimension number.
If any of these values cannot be computed, they are assigned 0 in the file.
See the SPSS Syntax Reference Guide for more information on matrix data files.