User Guide

546
Chapter 38
Multidimens
ional Scaling Create Measure
Figure 38-3
Multidimensional Scaling Create Measure from Data dialog box
Multidimensional scaling uses dissimilarity data to create a scaling solution. If
your data are multivariate data (values of measured variables), you must create
dissimilarity data in order to compute a multidimensional scaling solution. You can
specify the details of creating dissimilarity measures from your data.
Measure. Allows you to specify the dissimilarity measure for your analysis. Select
one alternative from the Measure group corresponding to your type of data, and
then select one of the measures from the drop-down list corresponding to that type
of measure. Available alternatives are:
 Interval. Euclidean distance, squared Euclidean distance, Chebychev, Block,
Minkowski, or Customized.
 Count. Chi-square measure or Phi-square measure.
 Binary. Euclidean distance, Squared Euclidean distance, Size difference, Pattern
difference, Variance, or Lance and Williams.
Create Distance Matrix. Allows you to choose the unit of analysis. Alternatives are
Between variables or Between cases.