A Three-Dimensional Solution with Nondefault Transformations

The previous solution was computed by using the default ratio transformation for proximities and interval transformations for the independent variables gener and degree. The results are pretty good, but you may be able to do better by using other transformations. For example, the proximities, gener, and degree all have natural orderings, but they may be better modeled by an ordinal transformation than a linear transformation.

  1. To rerun the analysis, scaling the proximities, gener, and degree at the ordinal level (keeping ties), recall the Multidimensional Scaling dialog box and click Model.
    Figure 1. Model dialog box
    The Multidimensional Scaling Model dialog box
  2. In the Model dialog, select Ordinal in the Proximity Transformations group.
  3. Click Continue.
  4. Click Restrictions in the Multidimensional Scaling dialog box.
    Figure 2. Restrictions dialog box
    The Multidimensional Scaling Restrictions dialog box
  5. In the Restrictions dialog, select gener and degree.
  6. Select Ordinal (keep ties) from the Independent Variable Transformations drop-down list.
  7. Click Change.
  8. Click Continue.
  9. Click OK in the Multidimensional Scaling dialog box.

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