Examples (PREFSCAL command) 

PREFSCAL
  VARIABLES=TP BT EMM JD CT BMM HRB TMd BTJ TMn CB DP GD CC CMB
  /INPUT=SOURCES(srcid )
  /INITIAL=CLASSICAL (SPEARMAN)
  /CONDITION=ROW
  /TRANSFORMATION=NONE
  /PROXIMITIES=DISSIMILARITIES
  /MODEL=WEIGHTED
  /CRITERIA=DIMENSIONS(2,2) DIFFSTRESS(.000001) MINSTRESS(.0001)
  MAXITER(5000)
  /PENALTY=LAMBDA(0.5) OMEGA(1.0)
  /PRINT=MEASURES COMMON
  /PLOT=COMMON WEIGHTS INDIVIDUAL ( ALL ) .
  • This syntax specifies an analysis on variables tp (Toast pop-up) through cmb (Corn muffin and butter). The variable srcid is used to identify the sources.
  • The INITIAL subcommand specifies that the starting values be imputed using Spearman distances.
  • The MODEL subcommand specifies a weighted Euclidean model, which allows each individual space to weight the dimensions of the common space differently.
  • The PLOT subcommand requests plots of the common space, individual spaces, and individual space weights.
  • All other parameters fall back to their default values.

For discussion of output from this syntax and to place the example in context, see Example: Three-Way Unfolding of Breakfast Item Preferences.