將多個元素合併為字串

R 中級 Regular Expressions

Angelo Zehr

Data Journalist

認識 glue_collapse

usernames <- c("Adam", "Betty", "Cora", "David")

glue_collapse(usernames)

會印出 AdamBettyCoraDavid

glue_collapse(
  usernames,
  sep = ", ",
  last = ", and ",
  width = 27
)

會印出 Adam, Betty, Cora, and Dav...

glue(
  "Hello {users}.",
  users = glue_collapse(
    usernames,
    sep = ", ",
    last = ", and "
  )
)

會印出 Hello Adam, Betty, Cora, and David.

資料框 df

glue_collapse(df$x) 會印出 123

R 中級 Regular Expressions