Mathematical Problems in Engineering / 2017 / Article / Fig 5

Research Article

A Fisher’s Criterion-Based Linear Discriminant Analysis for Predicting the Critical Values of Coal and Gas Outbursts Using the Initial Gas Flow in a Borehole

Figure 5

Sample histogram of ((a) samples of nonoutbursts and weak outbursts and (b) samples of weak outbursts and strong outbursts).
(a)
(b)