| 编码值 coding value | X1(N) | X2(K) | ||
| 频数frequency | 频率%frequency rate | 频数frequency | 频率%frequency rate | |
| −1.00 | 0.00 | 0.00 | 1.00 | 14.30 |
| −0.13 | 0.00 | 0.00 | 3.00 | 42.90 |
| 0.39 | 2.00 | 28.60 | 3.00 | 42.90 |
| 1.00 | 5.00 | 71.40 | 0.00 | 0.00 |
| 平均值 average value | 0.83 | −0.03 | ||
| 标准误 Standard error | 0.11 | 0.19 | ||
| 95%置信区间 95%confidence intervals | 0.55 | 1.0 | -0.49 | 0.43 |
| 最佳施肥量kg/株 the best fertilizer amount kg/plant | 2.05 | 2.50 | 0.90 | 1.65 |