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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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MAXITER Subcommand<br />

CATPCA 199<br />

MAXITER specifies the maximum number of iterations the procedure can go through in its<br />

computations. If not all variables are specified as NUME and/or MNOM, the output starts from<br />

iteration 0, which is the last iteration of the initial phase, in which all variables except MNOM<br />

variables are treated as NUME.<br />

• If MAXITER is not specified, the maximum number of iterations is 100.<br />

• The specification on MAXITER is a positive integer indicating the maximum number of<br />

iterations. There is no uniquely predetermined (that is, hard-coded) maximum for the<br />

value that can be used.<br />

CRITITER Subcommand<br />

CRITITER specifies a convergence criterion value. CATPCA stops iterating if the difference in<br />

fit between the last two iterations is less than the CRITITER value.<br />

• If CRITITER is not specified, the convergence value is 0.00001.<br />

• The specification on CRITITER is any value less than or equal to 0.1.<br />

PRINT Subcommand<br />

The model summary and the HISTORY statistics for the last iteration are always displayed.<br />

That is, they cannot be controlled by the PRINT subcommand. The PRINT subcommand<br />

controls the display of additional optional output. The output of the procedure is based on the<br />

transformed variables. However, the correlations of the original variables can be requested<br />

as well by the keyword OCORR.<br />

The default keywords are DESCRIP, LOADINGS, and CORR. However, when some keywords<br />

are specified, the default is nullified and only what was specified comes into effect. If<br />

a keyword is duplicated or if a contradicting keyword is encountered, then the last one silently<br />

becomes effective (in case of contradicting use of NONE, this means that only the keywords<br />

following NONE are effective). For example,<br />

/PRINT /PRINT = DESCRIP LOADING CORR<br />

/PRINT = VAF VAF /PRINT = VAF<br />

/PRINT = VAF NONE CORR /PRINT = CORR<br />

If a keyword that can be followed by a variable list is duplicated, it will cause a syntax error,<br />

and the procedure will terminate.<br />

The following keywords can be specified:<br />

DESCRIP(varlist) Descriptive statistics (frequencies, missing values, optimal scaling<br />

level, and mode). The variables in the varlist must be specified on the<br />

VARIABLES subcommand but need not appear on the ANALYSIS subcommand.<br />

If DESCRIP is not followed by a varlist, descriptives tables<br />

are displayed for all the variables in the varlist on the ANALYSIS<br />

subcommand.

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