Table 4 Classification success of a quadratic discriminant function analysis (Q-DFA) model run on elemental ratios in the shells of juvenile green-lipped mussels (P. canaliculus) collected in January 2015 from six sites along the west coast of the North Island of New Zealand.
Predicted collection site | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Collection site | Scott Pt | Ahipara Jan 15 | Ahipara Feb 15 | Ahipara Mar 15 | Tanutanu | Mitimiti | Whatipu | Oakura | n analysed | % Classified correctly | ROC area |
Scott Pt | 47 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 49 | 96 | 0.9983 |
Ahipara Jan 15 | 2 | 45 | 1 | 0 | 0 | 0 | 0 | 1 | 49 | 92 | 0.995 |
Ahipara Feb 15 | 0 | 0 | 47 | 0 | 0 | 0 | 0 | 0 | 47 | 100 | 0.9979 |
Ahipara Mar 15 | 0 | 0 | 0 | 50 | 0 | 0 | 0 | 0 | 50 | 100 | 1.0000 |
Tanutanu | 0 | 1 | 0 | 0 | 49 | 0 | 0 | 0 | 50 | 98 | 1.0000 |
Mitimiti | 0 | 1 | 0 | 1 | 0 | 48 | 0 | 0 | 50 | 96 | 0.9999 |
Whatipu | 0 | 0 | 0 | 0 | 0 | 0 | 50 | 0 | 50 | 100 | 1.0000 |
Oakura | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 46 | 50 | 92 | 0.9972 |
Total | 50 | 50 | 50 | 51 | 49 | 48 | 50 | 48 | 395 | 96.7 | 0.9964 |
