Research Article
Discriminant Analysis of Undaria pinnatifida Production Areas Using Trace Elemental Analysis
Table 3
Classification results by CART.
| (a) By nation () |
| | Production correct | Japan | China | Korea | | Center |
| | Japan | 100 | 47 | 0 | 0 | | China | 100 | 0 | 29 | 0 | | Korea | 74 | 1 | 1 | 17 |
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| (b) By area () |
| | Production correct | Sanriku | Naruto | China | Korea | | Center | Ratio (%) |
| | Sanriku | 100 | 22 | 0 | 0 | 0 | | Naruto | 92 | 0 | 23 | 1 | 1 | | China | 100 | 0 | 0 | 29 | 0 | | Korea | 74 | 2 | 0 | 1 | 16 |
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