Improving Rolling Bearing Fault Diagnosis by DS Evidence Theory Based Fusion Model

Table 2

Principal components of some samples.

	Class	PCA1	PCA2	PCA3	PCA4
Train set	1
	1
	1
	2
	2
	2
	3
	3
	3
Test set	1
	1
	1
	2
	2
	2
	3
	3
	3