s3-roman.md
In constructive: Display Idiomatic Code to Construct Most R Objects

roman

Code
  construct(as.roman(c(1, 12, NA, 3899)))
Output
  as.roman(c("I", "XII", NA, "MMMDCCCXCIX"))
Code
  construct(as.roman(integer()))
Output
  as.roman(character(0))
Code
  construct(structure(as.roman(c(1, 12)), names = c("a", "b")))
Output
  as.roman(c("I", "XII")) |>
    structure(names = c("a", "b"))
Code
  construct(structure(c(1L, 4000L), class = "roman"))
Output
  c(1L, 4000L) |>
    structure(class = "roman")
Code
  construct(as.roman(c(1, 12, NA)), opts_roman("next"))
Output
  c(1L, 12L, NA) |>
    structure(class = "roman")