Fault Diagnosis of Batch Reactor Using Machine Learning Methods

Table 8

Correlation matrix (PCA).

Correlation	Area	Mean	StdDev	𝑋	𝑌	𝑋𝑀	𝑌𝑀	Major	Minor	Feret	IntDen	Skew	Kurt	fArea	RawIntDen
matrix
Area	1	−0.29	0.42	1	0.98	1	0.98	1	1	1	1	0.48	−0.55	1	1
Mean	−0.29	1	−0.98	−0.29	−0.3	−0.3	−0.3	−0.3	−0.28	−0.3	−0.25	−0.92	0.86	−0.26	−0.25
StdDev	0.42	−0.98	1	0.42	0.44	0.43	0.44	0.44	0.41	0.43	0.38	0.98	−0.94	0.4	0.38
𝑋	1	−0.29	0.42	1	0.99	1	0.99	1	0.99	1	0.99	0.48	−0.56	1	0.99
𝑌	0.98	−0.3	0.44	0.99	1	0.99	1	0.99	0.96	0.99	0.98	0.5	−0.58	0.99	0.98
𝑋𝑀	1	−0.3	0.43	1	0.99	1	0.99	1	0.99	1	1	0.49	−0.56	1	1
𝑌𝑀	0.98	−0.3	0.44	0.99	1	0.99	1	0.99	0.96	0.99	0.98	0.5	−0.58	0.99	0.98
Major	1	−0.3	0.44	1	0.99	1	0.99	1	0.98	1	0.99	0.49	−0.57	1	0.99
Minor	1	−0.28	0.41	0.99	0.96	0.99	0.96	0.98	1	0.99	0.99	0.46	−0.53	0.98	0.99
Feret	1	−0.3	0.43	1	0.99	1	0.99	1	0.99	1	1	0.49	−0.57	1	1
IntDen	1	−0.25	0.38	0.99	0.98	1	0.98	0.99	0.99	1	1	0.44	−0.52	1	1
Skew	0.48	−0.92	0.98	0.48	0.5	0.49	0.5	0.49	0.46	0.49	0.44	1	−0.99	0.46	0.44
Kurt	−0.55	0.86	−0.94	−0.56	−0.58	−0.56	−0.58	−0.57	−0.53	−0.57	−0.52	−0.99	1	−0.54	−0.52
fArea	1	−0.26	0.4	1	0.99	1	0.99	1	0.98	1	1	0.46	−0.54	1	1
RawIntDen	1	−0.25	0.38	0.99	0.98	1	0.98	0.99	0.99	1	1	0.44	−0.52	1	1