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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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474 DISCRIMINANT<br />

OUTFILE Subcommand<br />

OUTFILE writes model information to an XML file. SmartScore and future releases of<br />

WhatIf? will be able to use this file.<br />

• The minimum specification is the keyword MODEL and a file name enclosed in parentheses.<br />

• The OUTFILE subcommand cannot be used if split file processing is on (SPLIT FILE<br />

command).<br />

TOLERANCE Subcommand<br />

TOLERANCE specifies the minimum tolerance a variable can have and still be entered into<br />

the analysis. The tolerance of a variable that is a candidate for inclusion in the analysis is the<br />

proportion of its within-groups variance not accounted for by other variables in the analysis.<br />

A variable with very low tolerance is nearly a linear function of the other variables; its inclusion<br />

in the analysis would make the calculations unstable.<br />

• The default tolerance is 0.001.<br />

• You can specify any decimal value between 0 and 1 as the minimum tolerance.<br />

PIN and POUT Subcommands<br />

PIN specifies the minimum probability of F that a variable can have to enter the analysis and<br />

POUT specifies the maximum probability of F that a variable can have and not be removed<br />

from the model.<br />

• PIN and POUT take precedence over FIN and FOUT. That is, if all are specified, PIN and<br />

POUT values are used.<br />

• If PIN and POUT are omitted, FIN and FOUT are used by default.<br />

• You can set PIN and POUT to any decimal value between 0 and 1. However, POUT should<br />

be greater than PIN if PIN is also specified.<br />

• PIN and POUT apply only to the stepwise methods and are ignored if the METHOD<br />

subcommand is omitted or if DIRECT is specified on METHOD.<br />

FIN and FOUT Subcommands<br />

FIN specifies the minimum partial F value that a variable must have to enter the analysis. As<br />

additional variables are entered into the analysis, the partial F for variables already in the<br />

equation changes. FOUT specifies the smallest partial F that a variable can have and not be<br />

removed from the model.<br />

• PIN and POUT take precedence over FIN and FOUT. That is, if all are specified, PIN and<br />

POUT values are used.<br />

• If PIN and POUT are omitted, FIN and FOUT are used by default. If FOUT is specified but<br />

FIN is omitted, the default value for FIN is 3.84. If FIN is specified, the default value for<br />

FOUT is 2.71.

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