ORTHOPLAN

ORTHOPLAN is available in Sampling and Testing.

ORTHOPLAN generates an orthogonal main-effects plan for a full-concept conjoint analysis. ORTHOPLAN can append or replace an existing active dataset, or it can build an active dataset (if one does not already exist). The generated plan can be listed in full-concept profile, or card, format using PLANCARDS. The file that is created by ORTHOPLAN can be used as the plan file for CONJOINT.

ORTHOPLAN 
 [/FACTORS=varlist ['labels'] (values ['labels'])...]
 
 [{/REPLACE     }]
  {/OUTFILE='savfile'|'dataset'}
 
 [/MINIMUM=value]
 
 [/HOLDOUT=value]  [/MIXHOLD={YES}]
                             {NO } 

This command reads the active dataset and causes execution of any pending commands. See the topic Command Order for more information.

Syntax for the ORTHOPLAN command can be generated from the Generate Orthogonal Design dialog.

Example:

ORTHOPLAN FACTORS=SPEED 'Highest possible speed'
   (70 '70 mph' 100 '100 mph' 130 '130mph')
 WARRANTY 'Length of warranty'
   ('1 year' '3 year' '5 year')
 SEATS (2, 4)
 /MINIMUM=9 /HOLDOUT=6.