Research Article
Binary Logistic Regression Modeling of Idle CO Emissions in Order to Estimate Predictors Influences in Old Vehicle Park
Table 2
Adopted predictor for BLR modeling.
| Symbol of predictor | Mark of logistic predictor , | Definition of predictor | Type of predictor | Dummy coding |
| TA | | Territorial Affiliation | (bi)nominal | 0 (foreigna) | 1 (domestic) |
| OR | | Odometer Readings | Discrete | Scale |
| VA | | Vehicle age | Discrete | Scale |
| EP | | Engine power | Categorical interval | 0 (≤40 kW)a | 1 (41–70 kW) | 2 (≥71 kW) |
| SFS | | System of fuel supply | (bi)nominal | 0 (injection) | 1 (carburetor) |
| K | | Catalytic converter (CAT) | (bi)nominal | 0 (with CATa) | 1 (no CAT) |
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Notes: areference subcategory in related category.
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