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Journal of Applied Mathematics
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Journal of Applied Mathematics
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2014
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Article
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Tab 4
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Research Article
Nonlinear Grey Prediction Model with Convolution Integral NGMC
and Its Application to the Forecasting of China’s Industrial
Emissions
Table 4
The modelling values and forecasts of China’s industrial SO
2
emissions by GMC (1, 2).
Time
Modelling values or forecast
Observations
Percent errors (%)
1 (2003)
2158.50
2158.50
0.00
2 (2004)
2195.32
2254.90
−2.64
3 (2005)
2367.35
2549.40
−7.14
4 (2006)
2398.87
2588.80
−7.34
5 (2007)
2110.67
2468.09
−14.48
6 (2008)
1205.64
2321.23
−48.06
7 (2009)
−630.24
2214.40
−128.46
8 (2010)
−4153.31
2185.15
−290.07