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SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

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FACTOR 551<br />

• By default, FACTOR uses the CORRELATION method and performs the principal components<br />

analysis of the selected cases. Those with eigenvalues greater than 1 are rotated using<br />

varimax rotation.<br />

• Four factor scores, for both selected and unselected cases, are computed using the default<br />

regression method and four new variables are saved in the working data file.<br />

ANALYSIS Subcommand<br />

The ANALYSIS subcommand specifies a subset of the variables named on VARIABLES for use<br />

in an analysis.<br />

• The specification on ANALYSIS is a list of variables, all of which must have been named on<br />

the VARIABLES subcommand. For matrix input, ANALYSIS can specify a subset of the variables<br />

in a correlation or covariance matrix.<br />

• Only one ANALYSIS subcommand is allowed. When multiple ANALYSIS subcommands are<br />

specified, the last is in effect.<br />

• If no ANALYSIS is specified, all variables named on the VARIABLES subcommand (or<br />

included in the matrix input file) are used.<br />

• Keyword TO in a variable list on ANALYSIS refers to the order in which variables are named<br />

on the VARIABLES subcommand, not to their order in the working data file.<br />

• Keyword ALL refers to all variables named on the VARIABLES subcommand.<br />

Example<br />

FACTOR VARIABLES=V1 V2 V3 V4 V5 V6<br />

/ANALYSIS=V4 TO V6.<br />

• This example requests a factor analysis of V4, V5, and V6. Keyword TO on ANALYSIS refers<br />

to the order of variables on VARIABLES, not the order in the working data file.<br />

• Cases with missing values for all variables specified on VARIABLES are omitted from the<br />

analysis. (The default setting for MISSING.)<br />

• By default, the CORRELATION method is used and a principal components analysis with a<br />

varimax rotation is performed.<br />

FORMAT Subcommand<br />

FORMAT modifies the format of factor pattern and structure matrices.<br />

• FORMAT can be specified anywhere after VARIABLES and MISSING. If more than one<br />

FORMAT is specified, the last is in effect.<br />

• If FORMAT is omitted or included without specifications, variables appear in the order in<br />

which they are named on ANALYSIS and all matrix entries are displayed.<br />

SORT Order the factor loadings in descending order.<br />

BLANK(n) Suppress coefficients lower than n in absolute value.<br />

DEFAULT Turn off keywords SORT and BLANK.

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