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Confusion matrix of HydrAP ranks (0 – 7) for resampled NLA lakes in 2007 and 2012 (n = 350 total, 53 lakes were not ranked because of missing dam attributes).
| 2012 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2007 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 0 | 13 | 9 | 1 | – | – | – | – | – |
| 1 | – | 26 | 5 | – | – | – | – | – |
| 2 | – | 2 | 43 | 1 | 3 | – | – | – |
| 3 | – | – | – | 9 | – | – | – | – |
| 4 | – | – | – | – | 25 | 6 | 2 | – |
| 5 | – | – | – | – | 6 | 22 | 11 | 8 |
| 6 | – | – | – | – | 2 | 7 | 27 | 22 |
| 7 | – | – | – | – | – | 1 | 4 | 42 |
