The Catastrophe Analysis of Shanghai Crude Oil Futures Price from the Perspective of Volatility Factors

Table 9

Predictive analysis result table.

u(t)	(t)	△	Judge symbol
1.09003	−0.34749	13.62131856	△ > 0
0.3647	−0.50602	7.301577059	△ > 0
−0.17027	1.48952	59.86459385	△ > 0
−1.28446	−0.63602	−6.031123225	△ < 0