Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes

Table 10

Correlation matrix.

DOL()/	DOL(1)	DOL(2)	DOL(3)	DOL(4)	DOL(5)	Aggregated value
X1	0.92078	1	0.93251	0.90497	0.96797	0.94524
X2	0.93769	0.85421	1	0.83565	0.81875	0.88926
X3	0.89886	0.96169	0.96396	1	0.95901	0.95670
X4	1	0.88951	0.85442	0.83532	0.90497	0.89684
X5	0.91331	1	0.90701	0.95695	0.98009	0.95147
X6	0.91514	1	0.90739	0.96063	0.97805	0.95224