Research Article
Principal Component Analysis Based Dynamic Fuzzy Neural Network for Internal Corrosion Rate Prediction of Gas Pipelines
Table 1
Eigenvalue and cumulative variance contribution.
| Principal component | Eigenvalue | Cumulative variance contribution rate |
| 1 | 7.973 | 36.52 | 2 | 5.222 | 59.86 | 3 | 2.987 | 80.35 | 4 | 1.502 | 86.62 | 5 | 0.412 | 89.44 | 6 | 0.398 | 92.38 | 7 | 0.214 | 95.95 | 8 | 0.177 | 97.72 | 9 | 0.098 | 99.76 | 10 | 0.028 | 99.89 |
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