Research Article
Model of Automobile Parts Sale Prediction Based on Nonlinear Periodic Gray GM(1,1) and Empirical Research
Table 3
Seasonal variation index (SVI).
| Month | SVI | Month | SVI | Month | SVI | Month | SVI |
| 1 | 0.830981 | 4 | 0.827722 | 7 | 0.734796 | 10 | 1.24856 | 2 | 0.828724 | 5 | 1.020258 | 8 | 0.956497 | 11 | 1.117194 | 3 | 0.943878 | 6 | 1.022932 | 9 | 1.278393 | 12 | 1.190064 |
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