Table 7 Diagnostic results.

From: A multivariate process quality correlation diagnosis method based on grouping technique

No

Diagnostic conclusions

1

Normal

2

Normal

3

Anomalous correlations of component pairs (y*1, y*3), (y*2, y*3)

4

Anomalous correlations of component pairs (y*1, y*2), (y*1, y*3)

5

Anomalous correlations of component pairs (y*1, y*2), (y*2, y*3)