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

col_spec

Code
  construct(readr::cols())
Output
  readr::cols()
Code
  construct(readr::cols(a = readr::col_double(), b = "c", c = readr::col_date(
    "%Y")))
Output
  readr::cols(
    a = readr::col_double(),
    b = readr::col_character(),
    c = readr::col_date(format = "%Y")
  )
Code
  construct(readr::cols(readr::col_double(), readr::col_integer()))
Output
  readr::cols(readr::col_double(), readr::col_integer())
Code
  construct(readr::cols(a = "i", .default = readr::col_character()))
Output
  readr::cols(a = readr::col_integer(), .default = readr::col_character())
Code
  construct(readr::cols_only(a = "d", b = "c"))
Output
  readr::cols_only(a = readr::col_double(), b = readr::col_character())
Code
  construct(readr::cols(a = "d", .default = readr::col_skip(), .delim = ";"))
Output
  readr::cols(a = readr::col_double(), .default = readr::col_skip(), .delim = ";")
Code
  construct(readr::spec(readr::read_csv(I("a,b\n1,x"), show_col_types = FALSE)))
Output
  readr::cols(a = readr::col_double(), b = readr::col_character(), .delim = ",")
Code
  construct(structure(readr::cols(a = "d"), foo = "bar"))
Output
  readr::cols(a = readr::col_double()) |>
    structure(foo = "bar")
Code
  construct(structure(list(cols = list(a = 1), default = readr::col_guess(),
  delim = NULL), class = "col_spec"))
Output
  list(cols = list(a = 1), default = readr::col_guess(), delim = NULL) |>
    structure(class = "col_spec")
Code
  construct(readr::cols(a = "d"), opts_col_spec("next"))
Output
  list(cols = list(a = readr::col_double()), default = readr::col_guess(), delim = NULL) |>
    structure(class = "col_spec")
Code
  construct(readr::cols(a = "d"), opts_col_spec("list"))
Output
  list(cols = list(a = readr::col_double()), default = readr::col_guess(), delim = NULL) |>
    structure(class = "col_spec")