Table 3.
Validation index number of clusters.
| Number of cluster | PC | MPC |
|---|---|---|
| 2 | 0.76115117 | 0.52230234 |
| 3 | 0.51952332 | 0.27928498 |
| 4 | 0.39922768 | 0.19897024 |
| 5 | 0.33300297 | 0.16625371 |
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