Open Access
Table 1
Confusion matrix with number of forecast instances (absolute and relative) for the evaluation of binary forecasting the persistence of clear sky periods. Note that only the constant clear sky periods (61% of total) have been considered for the evaluation.
| Forecast | Sum | ||
|---|---|---|---|
| Persistent clear | Non-persistent clear | ||
| Measurement | |||
| Persistent clear | TP − 98 506 (95.4%) | FP − 2884 (2.8%) | 101 390 (98.2%) |
| Non-persistent clear | FN − 533 (0.5%) | TN − 1359 (1.3%) | 1892 (1.8%) |
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