Calculation of a Health Index of Oil-Paper Transformers Insulation with Binary Logistic Regression

Table 6

Classification table with five factors.

Actual group	Predicted		Actual group size	Percentage correctly classified
	0	1
0 (health)	19	2	21	90.5%
1 (unhealthy)	1	8	9	88.9%
Predicted group size	20	10	30	90%