V2EX error bar

Error Bar

释义 Definition

error bar(误差棒 / 误差线):在图表(如柱状图、折线图、散点图)中用来表示数据不确定性或变异范围的线段/标记,常见含义包括标准差(SD)标准误(SE)置信区间(CI)。不同图表中的误差棒所代表的统计量需以图注或说明为准。

发音 Pronunciation

/err br/

例句 Examples

The chart shows the average, with an error bar for each group.
图表展示了平均值,并为每个组标出了误差棒。

The researchers reported that the trend was robust, but the wide error bars suggested substantial uncertainty in the estimates.
研究人员报告该趋势较稳定,但较宽的误差棒表明这些估计仍存在相当大的不确定性。

词源 Etymology

error 源自拉丁语 error(“偏离、错误”),bar 指“条形、杆状标记”。合在一起,error bar 直观地表示“用于展示误差范围的条状标记”。该术语随着现代统计图形与科学绘图的普及而广泛使用。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Visual Display of Quantitative Information(Edward R. Tufte):讨论数据可视化中的表达方式与常见图形元素,涉及误差表达与图表解读。
  • An Introduction to Error Analysis(John R. Taylor):在实验数据处理中系统讲解误差、不确定度与相关图示表达,常提及误差棒的意义与用法。
  • Numerical Recipes: The Art of Scientific Computing(Press 等):涵盖科学计算与数据分析,涉及不确定性估计与结果展示时对误差呈现(包括误差棒)的讨论。
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