An Optimized Grey Dynamic Model for Forecasting the Output of High-Tech Industry in China

Table 2

The values of parameters 𝑛, 𝑟, and 𝑟𝑝 in (7), the estimates of model parameters 𝑏₁, 𝑏₂, and (𝑏_2𝑖−1,𝑏_2𝑖) in (10), and the value of RMSPEPR in (17).

Parameter	Value	Parameter	Value
𝑛	3	𝑏3	23.28
𝑟	8	𝑏4	17.78
𝑟𝑝	0	𝑏5	9.30
𝑏1	0.10822	𝑏6	−3.20
𝑏2	−5083.77	RMSPEPR (%)	7.07