Piper-PCA-Fisher Recognition Model of Water Inrush Source: A Case Study of the Jiaozuo Mining Area

Table 2

Central values of the discriminant function in each category.

Classification	I	II	III	IV
	−3.126	−4.828	7.812	−0.266
	−0.130	−1.178	−0.704	1.744
	−0.362	0.198	0.002	0.097