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In statistics, a fixed effects model is a statistical model that represents the observed quantities in terms of explanatory variables that are treated 阅读全文
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Panel data In statistics and econometrics, the term panel data (or longitudinal data) refers to multi-dimensional data frequently involving measuremen 阅读全文
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One-way analysis of variance In statistics, one-way analysis of variance (abbreviated one-way ANOVA) is a technique used to compare means of three or 阅读全文
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1、方差分析 方差分析的定义：方差分析(Analysis of Variance，简称ANOVA)，又称“变异数分析”，是R.A.Fisher发明的，用于两个及两个以上样本均数差别的显著性检验。 由于各种因素的影响，研究所得的数据呈现波动状。造成波动的原因可分成两类，一是不可控的随机因素，另一是研究 阅读全文
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Uses Among the most frequently used t-tests are: A one-sample location test of whether the mean of a population has a value specified in a null hypoth 阅读全文