Table 4 Analysis of variance contribution ratios of nine principal components of the corrosion factors of a subsea pipeline.

From: Prediction of the corrosion rates of subsea pipelines via KPCA

Principal component

Variance contribution (%)

Cumulative contribution (%)

F1

34.52

34.52

F2

14.83

49.35

F3

13.22

62.57

F4

10.30

72.87

F5

8.56

81.43

F6

5.29

86.72

F7

5.06

91.78

F8

4.71

96.49

F9

3.51

100.00

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