Research Article
Optimization of Multiple Roughness Characteristics of Chemically Deposited Ni-P-W Coating Using Weighted Principal Component Analysis
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Source | DF | Sum of square | Mean of square | F-ratio | Contribution % |
| A | 2 | 0.09764 | 0.04882 | 2.55* | 9.18 | B | 2 | 0.03214 | 0.01607 | 0.84 | 3.02 | C | 2 | 0.11796 | 0.05898 | 3.08* | 11.09 | A * B | 4 | 0.21563 | 0.05391 | 2.81 | 20.28 | A * C | 4 | 0.10983 | 0.02746 | 1.43 | 10.33 | B * C | 4 | 0.33686 | 0.08421 | 4.39** | 31.68 | Error | 8 | 0.15339 | 0.01917 | 14.42 |
| Total | 26 | 1.06344 | 100.00 |
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*Significant at 75% confidence level.
**Significant at 95% confidence level.
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