Research Article
A Model for Hourly Solar Radiation Data Generation from Daily Solar Radiation Data Using a Generalized Regression Artificial Neural Network
Table 3
Impact of training data set size on model’s accuracy.
| Training data set size (records) | Av. overall MAPE | |
| 84 (7 solar days) | 64.3% | 0.1354 | 348 (29 solar days) | 36.8% | 0.2263 | 684 (57 solar days) | 24.1% | 0.6583 | 35,040 (1460 solar days) | 11.8% | 0.9595 |
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