變異數分析(Analysis of Variance, ANOVA). 但是、如果樣本群的數目變多了，不是兩組樣本，而是k 組樣本的話，事情就會變得比較麻煩！ 如果要用上述的合併T 檢定對 中 ... ... <看更多>

Let's say your data frame is like this: df = data.frame(id=1:100, Group=sample(letters[1:2],100,replace=TRUE), Gender=sample(c("M","F"),100,replace=TRUE), ... ... <看更多>

File src/library/stats/R/anova.R. # Part of the R package, https://www.R-project.org. #. # Copyright (C) 1995-2014 The R Core Team. ... <看更多>

The answer is somewhat hidden in the following quote from the R help file for anova.lm():. Normally the F statistic is most appropriate, which compares the mean ... ... <看更多>