Table 3.
Error cost matrix with assigned weights to each type of prediction misclassification.
| Manually classified as |
||||
|---|---|---|---|---|
| Predicted as | Smoker | Non-smoker | Ex-smoker | Unknown |
| Smoker | 0 | 20 | 5 | 1 |
| Non-smoker | 20 | 0 | 10 | 1 |
| Ex-smoker | 5 | 10 | 0 | 1 |
| Unknown | 2 | 2 | 2 | 0 |
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