TABLE 5.
Cluster fit statistics
| Absolute validation indices | |||
|---|---|---|---|
| Number of clusters | |||
| Fit statistic | 3 | 4 | 5 |
| Dunn | 0.95 | 0.93 | 0.84 |
| Avg.silwidth | 0.21 | 0.17 | 0.13 |
| CH index | 114.79 | 93.22 | 76.48 |
| Entropy | 1.10 | 1.35 | 1.59 |
| Comparative validation indices | |||
| Cluster comparison | |||
| Fit statistic | 3 vs. 4 | 3 vs. 5 | 4 vs. 5 |
| VI | 0.37 | 0.99 | 0.68 |
| Corrected rand | 0.81 | 0.49 | 0.64 |
Note: For the absolute validation indices, higher scores on Dunn, Avg.silwidth, and CH index indicate better fit, whereas lower scores for entropy indicate a better fitting model. For the comparative validation indices, lower scores on the VI and higher scores on the Corrected Rand indicate better fit.