如何在 R 中一次重新编码具有相同映射的多个变量？

Question

我正在努力寻找一种更简洁的方法来以更精简的方式一次重新编码（数字到数字）多个变量。有没有比下面这段代码更简单的替代方法？


mhomes_min <- mhomes %>% 
  mutate(contrib_private_3rd_party = recode(contrib_private_3rd_party,
     `1` = 1,
     `2` = 49,
     `3` = 100,
     `4` = 200,
     `5` = 500,
     `6` = 1000,
     `7` = 5000,
     `8` = 10000,
     `9` = 20000)) %>% 
  mutate(contrib_firm_3rd_party = recode(contrib_firm_3rd_party,
     `1` = 1,
     `2` = 49,
     `3` = 100,
     `4` = 200,
     `5` = 500,
     `6` = 1000,
     `7` = 5000,
     `8` = 10000,
     `9` = 20000)) %>% ...

Answer 1

我们可以使用mutate和across，指定列名在across中为recoded来修改那些列

mhomes <- mhomes %>%
  mutate(across(c(contrib_private_3rd_party, contrib_firm_3rd_party), 
     ~ recode(., `1` = 1,
 `2` = 49,
 `3` = 100,
 `4` = 200,
 `5` = 500,
 `6` = 1000,
 `7` = 5000,
 `8` = 10000,
 `9` = 20000)))

如何在 R 中一次重新编码具有相同映射的多个变量？

How can I recode multiple variables with the same mapping at once in R?

mapping

r

dplyr

recode