Building a Four-Cluster Solution

Figure 1. K-Means Cluster Analysis dialog box
K-Means Cluster Analysis dialog box
  1. To run a cluster analysis with four clusters, reopen the K-Means Cluster Analysis dialog box.
  2. Type 4 as the number of clusters.
  3. Click Save.
    Figure 2. Save dialog box
    Save dialog box
  4. Select Cluster membership and Distance from cluster center.
  5. Click Continue.
  6. Click OK in the K-Means Cluster Analysis dialog box.
  7. The saved variables can be used to create a useful boxplot. From the menus, choose:

    Graphs > Chart Builder...

  8. Click the Gallery tab, select Boxplot from the list of chart types, and drag and drop the Simple Boxplot icon onto the canvas.
  9. Drag and drop Distance of Case from its Classification Cluster Center onto the y axis.
  10. Drag and drop Cluster Number of Case onto the x axis.
  11. Click OK to create the boxplot.
Figure 3. Chart Builder
Chart Builder

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