从 post 个临时测试中获得整洁的输出

Getting tidy output from post hoc tests

考虑这个数据框 dat1:

dat1 <- data.frame(Region = rep(c("r1","r2"), each = 100),
                   State = rep(c("NY","MA","FL","GA"), each = 10),
                   Loc = rep(c("a","b","c","d","e","f","g","h"),each = 5),
                   ID = rep(c(1:10), each=2),
                   var1 = rnorm(200),
                   var2 = rnorm(200),
                   var3 = rnorm(200),
                   var4 = rnorm(200),
                   var5 = rnorm(200))

我有类似于上面创建的 dat1 的数据框。 RegionStateLoc 是每个观察值 ID 的分组变量,每个观察值 var1:var5 进行 5 次测量。对于每个分组变量,我对每个 var 进行单变量方差分析。当发现显着差异时,我使用 TukeyHSD() 函数和 multcompView 包中的 multcompLetters() 函数在组上生成 CLD。因为我想为每个分组变量执行此操作,所以我试图编写一个函数来防止自己重复和打错字。下面显示了我对此的看法:

library(tidyverse)
library(multcomp)
library(multcompView)

Tuk <- function(dat,groupvar,var){
  TUK <- TukeyHSD(aov(lm(get(var) ~ get(groupvar), data=dat)))
  names(TUK)[[1]] <- paste0(groupvar)
  lets<-multcompLetters(extract_p(TUK$groupvar))
  lets
}
#assuming all 5 vars were significant in the anovas, I would then run this for each grouping variable as follows:
vars <- paste0(names(dat1[,5:9]))
#by Region
lapply(vars, FUN=Tuk, dat=dat1, groupvar="Region")
#by State
lapply(vars, FUN=Tuk, dat=dat1, groupvar="State")
#by Loc
lapply(vars, FUN=Tuk, dat=dat1, groupvar="Loc")

代码在函数之外工作。该函数将创建模型,但我无法弄清楚如何格式化它以便识别 multcompLetters(extract_p()) 部分的 groupvar 是什么?我怎样才能解决这个问题,我怎样才能让它输出一个整洁的 table 的函数,它显示每个组和我一次给它的每个变量的字母。例如,State 使用所有 5 个变量

看起来像这样
     NY   MA   FL   GA
var1  a    ab   c    a
var2  a    ab   b    c
var3  a    c    ab   bc  
var4  ab   c    ab   ab 
var5  a    b    c     b

此外,是否有合理的方法使此函数生成显示 CLD 字母的组的箱线图(针对每个变量)?

假设情节确实是您正在寻找的内容,这是否让您非常接近 var1 ~ State 的单曲情节,Indrajeet 在构建这个包方面做得很好,我讨厌重新发明轮子。

dat1 <- data.frame(Region = rep(c("r1","r2"), each = 100),
                   State = rep(c("NY","MA","FL","GA"), each = 10),
                   Loc = rep(c("a","b","c","d","e","f","g","h"),each = 5),
                   ID = rep(c(1:10), each=2),
                   var1 = rnorm(200),
                   var2 = rnorm(200),
                   var3 = rnorm(200),
                   var4 = rnorm(200),
                   var5 = rnorm(200))

library(ggstatsplot)

ggbetweenstats(dat1, State, var1, 
               plot.type = "box", 
               pairwise.comparisons = TRUE, 
               pairwise.display = "everything")

#> Note: Shapiro-Wilk Normality Test for var1: p-value = 0.183
#> 
#> Note: Bartlett's test for homogeneity of variances for factor State: p-value = 0.373
#> 

您接受了答案,但只要记录下来,您只需做一点工作就可以得到您最初提出的要求...

# 

library(multcompView)
library(dplyr)
library(purrr)
library(tidyselect)

set.seed(1111)
dat1 <- data.frame(Region = rep(c("r1","r2"), each = 100),
                   State = rep(c("NY","MA","FL","GA"), each = 10),
                   Loc = rep(c("a","b","c","d","e","f","g","h"),each = 5),
                   ID = rep(c(1:10), each = 2),
                   var1 = rnorm(200),
                   var2 = rnorm(200),
                   var3 = rnorm(200),
                   var4 = rnorm(200),
                   var5 = rnorm(200))

# You want just the letters which you can get by ...
multcompLetters(TukeyHSD(aov(var1  ~ State, data = dat1))$State[,4])$Letters
#>  GA  MA  NY  FL 
#> "a" "a" "a" "a"

# Your function redone...
Tuk3 <- function(data,
                 groupvar,
                 var) {
  lst <- as.list(match.call())
  if (is.symbol(lst$groupvar) || is.symbol(lst$var)) {
    stop("Please quote all variables")
  }
  if (!is.call(groupvar)) {
    grouplabel <- rlang::as_name(rlang::enquo(groupvar))
  }

  data <-
    dplyr::select(
      .data = data,
      var = {{ var }},
      groupvar = {{ groupvar }}
    )

  aov_object <- aov(var ~ groupvar, data = data)
  aov_results <- broom::tidy(aov_object) %>%
    mutate(term = if_else(term != "Residuals", grouplabel, term))
  tukey_results <- broom::tidy(TukeyHSD(aov_object)) %>%
    mutate(term = grouplabel)

  # multcompLetters is annoying and wants named vectors
  p_values <- tukey_results %>% pull(adj.p.value)
  names(p_values) <- tukey_results %>% pull(comparison)
  letters_results <-  data.frame(as.list(multcompLetters(p_values)$Letters))
  return(letters_results)
}

# works for one
Tuk3(data = dat1, groupvar = "State", var = "var1")
#>   GA MA NY FL
#> 1  a  a  a  a

# you could do this manually but I do it a lot so I have a function
variables_list <- CGPfunctions::cross2_var_vectors(dat1, 1:3, 5:9)

# Make the names nice
outcomes2 <- variables_list$lista
groupings2 <- variables_list$listb
names(groupings2) <- unlist(groupings2)
names(outcomes2) <- paste(unlist(outcomes2), "~", unlist(groupings2))

# get all 15 results and a final map_dfr to make one tibble
map2(.x = outcomes2,
     .y = groupings2,
     .f = ~ Tuk3(dat = dat1,
                 var = tidyselect::all_of(.x),
                 groupvar = tidyselect::all_of(.y))) %>% 
       map_dfr(~ rbind(.), .id = "Which_ANOVA")
#>      Which_ANOVA   r2   r1   GA   MA   NY   FL    b    c    d    e    f    g
#> 1  var1 ~ Region    a    a <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA>
#> 2  var2 ~ Region    a    a <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA>
#> 3  var3 ~ Region    a    a <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA>
#> 4  var4 ~ Region    a    a <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA>
#> 5  var5 ~ Region    a    a <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA> <NA>
#> 6   var1 ~ State <NA> <NA>    a    a    a    a <NA> <NA> <NA> <NA> <NA> <NA>
#> 7   var2 ~ State <NA> <NA>    a    a    a    a <NA> <NA> <NA> <NA> <NA> <NA>
#> 8   var3 ~ State <NA> <NA>    a    a    a    a <NA> <NA> <NA> <NA> <NA> <NA>
#> 9   var4 ~ State <NA> <NA>    a    a    a    a <NA> <NA> <NA> <NA> <NA> <NA>
#> 10  var5 ~ State <NA> <NA>    a    b   ab   ab <NA> <NA> <NA> <NA> <NA> <NA>
#> 11    var1 ~ Loc <NA> <NA> <NA> <NA> <NA> <NA>    a    a    a    a    a    a
#> 12    var2 ~ Loc <NA> <NA> <NA> <NA> <NA> <NA>    a    a    a    a    a    a
#> 13    var3 ~ Loc <NA> <NA> <NA> <NA> <NA> <NA>    a    a    a    a    a    a
#> 14    var4 ~ Loc <NA> <NA> <NA> <NA> <NA> <NA>    a    a    a    a    a    a
#> 15    var5 ~ Loc <NA> <NA> <NA> <NA> <NA> <NA>   ab   ab   ab    a   ab    b

我截了结果