如何在 R 中使用 tabyl 交叉制表 4 个变量
How to crosstab 4 variables using tabyl in R
我想按组 g
交叉表变量 x
、y
、z
。我可以用 3 个变量 (tabyl(x,y,z))
来完成,但我想对 g
的每个值重复它。我试过 group_by(g)
但没用。
library(dplyr)
#>
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#>
#> filter, lag
#> The following objects are masked from 'package:base':
#>
#> intersect, setdiff, setequal, union
library(janitor)
#>
#> Attaching package: 'janitor'
#> The following objects are masked from 'package:stats':
#>
#> chisq.test, fisher.test
df <- tibble(x = c(1, 2, 3, 3, 4, 3),
y = c(1,1,1,2,2,2),
z = c(1,2,1,1,2,2),
g = c(1,1,1,1,2,2))
t <- df %>%
tabyl(x,y,z)
t
#> $`1`
#> x 1 2
#> 1 1 0
#> 2 0 0
#> 3 1 1
#> 4 0 0
#>
#> $`2`
#> x 1 2
#> 1 0 0
#> 2 1 0
#> 3 0 1
#> 4 0 1
Created on 2021-03-04 by the reprex package (v1.0.0)
我们可以使用 group_split
和 map
library(dplyr)
library(janitor)
library(purrr)
df %>%
group_split(g) %>%
map(~ .x %>% tabyl(x, y, z))
我想按组 g
交叉表变量 x
、y
、z
。我可以用 3 个变量 (tabyl(x,y,z))
来完成,但我想对 g
的每个值重复它。我试过 group_by(g)
但没用。
library(dplyr)
#>
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#>
#> filter, lag
#> The following objects are masked from 'package:base':
#>
#> intersect, setdiff, setequal, union
library(janitor)
#>
#> Attaching package: 'janitor'
#> The following objects are masked from 'package:stats':
#>
#> chisq.test, fisher.test
df <- tibble(x = c(1, 2, 3, 3, 4, 3),
y = c(1,1,1,2,2,2),
z = c(1,2,1,1,2,2),
g = c(1,1,1,1,2,2))
t <- df %>%
tabyl(x,y,z)
t
#> $`1`
#> x 1 2
#> 1 1 0
#> 2 0 0
#> 3 1 1
#> 4 0 0
#>
#> $`2`
#> x 1 2
#> 1 0 0
#> 2 1 0
#> 3 0 1
#> 4 0 1
Created on 2021-03-04 by the reprex package (v1.0.0)
我们可以使用 group_split
和 map
library(dplyr)
library(janitor)
library(purrr)
df %>%
group_split(g) %>%
map(~ .x %>% tabyl(x, y, z))