Table 3 Contribution rate and cumulative contribution rate of principal components.

From: Risk assessment of coal mine water inrush based on PCA-DBN

Element

vcp (%)

cvcp (%)

1

32.38

32.38

2

15.67

48.05

3

13.52

61.57

4

10.01

71.58

5

6.02

77.6

6

5.82

83.4

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