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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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CONJOINT<br />

Overview<br />

CONJOINT is available in the Conjoint option.<br />

CONJOINT [PLAN={* }]<br />

{file}<br />

[/DATA={* }]<br />

{file}<br />

/{SEQUENCE}=varlist<br />

{RANK }<br />

{SCORE }<br />

[/SUBJECT=variable]<br />

[/FACTORS=varlist[’labels’] ([{DISCRETE[{MORE}]}]<br />

{ {LESS} }<br />

{LINEAR[{MORE}] }<br />

{ {LESS} }<br />

{IDEAL }<br />

{ANTIIDEAL }<br />

[values[’labels’]])]<br />

varlist...<br />

[/PRINT={ALL** } [SUMMARYONLY]]<br />

{ANALYSIS }<br />

{SIMULATION }<br />

{NONE }<br />

[/UTILITY=file]<br />

[/PLOT={[SUMMARY] [SUBJECT] [ALL]}]<br />

{[NONE**] }<br />

**Default if subcommand or keyword is omitted.<br />

Example:<br />

CONJOINT PLAN=’CARPLAN.SAV’<br />

/FACTORS=SPEED (LINEAR MORE) WARRANTY (DISCRETE MORE)<br />

PRICE (LINEAR LESS) SEATS<br />

/SUBJECT=SUBJ /RANK=RANK1 TO RANK15 /UTILITY=’UTIL.SAV’.<br />

CONJOINT analyzes score or rank data from full-concept conjoint studies. A plan file<br />

generated by ORTHOPLAN or entered by the user describes the set of full concepts scored<br />

or ranked in terms of preference. A variety of continuous and discrete models is available<br />

to estimate utilities for each individual subject and for the group. Simulation estimates for<br />

concepts not rated can also be computed.<br />

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