最近手上有一批数据，使用不同的检测方法对总体中不同组成的占比率进行检测的，而总体中实际的各个组分的占比已知，目的在于确定哪种检测方案误差最小，这种情况应该用什么统计分析方法比较合适，各位大神有什么好的建议，还望不吝赐教。数据如下所示。
| 组成 | 实际占比 | method1 | method2 | method3 | method4 | method5 |
| A | 7.55% | 0.01% | 16.29% | 17.85% | 13.82% | 25.36% |
| B | 7.55% | 0.74% | 15.94% | 12.15% | 22.15% | 13.81% |
| C | 1.51% | 0.43% | 8.22% | 11.42% | 7.38% | 13.12% |
| D | 7.55% | 0.00% | 7.86% | 12.08% | 11.71% | 4.78% |
| E | 7.55% | 0.34% | 8.87% | 5.57% | 0.00% | 0.00% |
| F | 7.55% | 0.00% | 2.27% | 4.43% | 2.60% | 2.42% |
| G | 0.38% | 0.29% | 0.00% | 0.00% | 1.06% | 0.00% |
| H | 7.55% | 0.00% | 0.00% | 0.00% | 7.26% | 3.61% |
| I | 7.55% | 7.43% | 14.22% | 11.93% | 15.25% | 16.87% |
| J | 7.55% | 0.00% | 13.57% | 11.65% | 0.00% | 0.08% |
| K | 7.55% | 5.18% | 6.49% | 6.27% | 8.71% | 8.10% |
| L | 7.55% | 20.15% | 3.14% | 5.17% | 5.40% | 5.34% |
| M | 7.55% | 41.90% | 0.16% | 0.90% | 0.54% | 1.18% |
| N | 7.55% | 14.40% | 0.30% | 0.56% | 0.26% | 0.80% |
| O | 7.55% | 9.12% | 2.68% | 0.04% | 3.87% | 4.54% |
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