r - 具有频率和百分比的双向列联表

Question

我得到了以下双向列联表，其中包含单元格百分比和频率(在括号中)。

gender       blue blue-gray       brown      dark      hazel    yellow
 female 33.33% (3) 0.00% (0) 55.56%  (5) 0.00% (0) 11.11% (1) 0.00% (0)
   male 34.62% (9) 3.85% (1) 46.15% (12) 3.85% (1)  3.85% (1) 7.69% (2)

我用的R代码是

library(dplyr)

library(janitor)

starwars %>%
  filter(species == "Human") %>% 
  tabyl(gender, eye_color) %>%
  adorn_percentages("row") %>%
  adorn_pct_formatting(digits = 2) %>%
  adorn_ns()

但是，我想获得相同类型的表格，其中包含单元格频率和百分比(在括号中)。请提供任何帮助。

Answer 1

我们可以将 adorn_ns 中的 position 参数从 rear(默认)更改为 front

library(tidyverse)
starwars %>%
  filter(species == "Human") %>% 
   tabyl(gender, eye_color) %>%
   adorn_percentages("row") %>%
   adorn_pct_formatting(digits = 2) %>%
   adorn_ns(position = "front")
# gender       blue blue-gray       brown      dark      hazel    yellow
# female 3 (33.33%) 0 (0.00%)  5 (55.56%) 0 (0.00%) 1 (11.11%) 0 (0.00%)
#   male 9 (34.62%) 1 (3.85%) 12 (46.15%) 1 (3.85%) 1  (3.85%) 2 (7.69%)

---

或者，如果对象已经创建，则另一种选择是使用 mutate_at 进行后处理，通过捕获两个 block 中的字符来更改除第一列之外的所有列的格式，通过反转为百分比添加 () 时的反向引用

library(tidyverse)
starwars %>%
  filter(species == "Human") %>% 
  tabyl(gender, eye_color) %>%
  adorn_percentages("row") %>%
  adorn_pct_formatting(digits = 2) %>%
  adorn_ns() %>% 
  mutate_at(-1, list(~ str_replace(., "^([0-9.%]+)\\s+\\((\\d+)\\)", "\\2 (\\1)")))
# gender       blue blue-gray       brown      dark      hazel    yellow
#1 female 3 (33.33%) 0 (0.00%)  5 (55.56%) 0 (0.00%) 1 (11.11%) 0 (0.00%)
#2   male 9 (34.62%) 1 (3.85%) 12 (46.15%) 1 (3.85%)  1 (3.85%) 2 (7.69%)