V2EX mixed-effects

Mixed-Effects

释义 Definition

“混合效应”的;常指混合效应模型(mixed-effects model),在统计建模中同时包含固定效应(fixed effects)与随机效应(random effects),用于处理分层/重复测量/个体差异等数据结构。(也可泛指“混合效应”这一类影响。)

发音 Pronunciation (IPA)

/mkst fekts/

例句 Examples

The researchers used a mixed-effects model to analyze the repeated measurements.
研究人员使用混合效应模型来分析重复测量数据。

After controlling for age and income, a mixed-effects approach accounted for differences between schools and classrooms.
在控制年龄和收入之后,混合效应方法进一步解释了学校与班级之间的差异。

词源 Etymology

mixed 来自“mix(混合)”,表示“由多种成分组成”;effects 是 effect(效应、影响)的复数形式。统计学语境中,“mixed-effects”强调模型中混合了两类“效应”:固定效应(总体上稳定的影响)与随机效应(因个体/群体而异的随机差异)。

相关词 Related Words

文献与作品 Literary Works

  • Pinheiro, J. C., & Bates, D. M. Mixed-Effects Models in S and S-PLUS
  • Gelman, A., & Hill, J. Data Analysis Using Regression and Multilevel/Hierarchical Models
  • McCulloch, C. E., Searle, S. R., & Neuhaus, J. M. Generalized, Linear, and Mixed Models
  • Bates, D., Mchler, M., Bolker, B., & Walker, S. “Fitting Linear Mixed-Effects Models Using lme4”
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