That is, the regression line would tend to overestimate the magnitudes of y . 即回归线趋于过高估计了Y值。
The regression line is derived from a sample and not from the entire population . 样本回归线是根据一个样本而不是根据完全总体推导出来的。
If the observations used in the analysis extend back in time for several years, the resulting regression line may be too steep . 如果在分析中使用的观察值扩大到几年以前,那么推导出的回归直线就会可能太悬殊。
The standard error of estimate, on the other hand, measures the variability, or scatter, of the observed values around the regression line . 而估计值的平均误差,却是度量观察值围绕着回归直线的变化程度或分散程度。
That is, the regression line would tend to overestimate the magnitudes of y 即回归线趋于过高估计了y值。
Best-fit regression line 最佳拟合回归线
How do we think about how well our sample regression line fits our sample data 我们如何衡量样本回归线是否很好地拟合了样本数据呢
How do we think about how well our sample regression line fits our sample data 我们怎样衡量我们的样本回归线拟合样本数据有多好呢?
Medical microbiology; methods for the determination of susceptibility of pathogens except mycrobacteria to antimicrobial agents; regression line analysis for the correlation of zone diameters and mics 医用微生物学.病原体分枝杆菌除外对抗菌素敏感性
Data from regression lines of wr on vr and yr and ( wr + vr ) indicate that lower peak viscosity, lower hot-paste viscosity, lower breakdown viscosity, higher setback viscosity and higher consistency viscosity are dominant and cool viscosity is ambidirectional 图析显示:低高峰黏度、低热糊黏度、低崩解黏度、高回馈黏度及高胶质黏度为相对显性;冷糊黏度为双向显性。