Get Column Specifications from a Spec

Extracts the named list of fr_col objects configured via fr_cols(). Each element describes a column's label, width, alignment, and other properties. If no columns have been explicitly configured, returns an empty list (columns are auto-generated at render time by finalize_spec()).

Usage

fr_get_columns(spec)

Arguments

spec

An fr_spec object from fr_table() or fr_listing().

Value

A named list of fr_col objects, keyed by column name. Empty list if no columns have been configured.

See also

fr_cols() to configure columns, fr_col() for the column spec constructor, fr_get_col() for a single column.

Examples

spec <- tbl_demog |> fr_table() |>
  fr_cols(
    characteristic = fr_col("Characteristic", width = 2.5),
    placebo = fr_col("Placebo", align = "right")
  )
cols <- fr_get_columns(spec)
names(cols)            # "characteristic", "placebo"
#> [1] "characteristic" "placebo"        "zom_50mg"       "zom_100mg"     
#> [5] "total"          "group"         
cols$placebo$width     # 1.5 (default)
#> [1] 0.975
cols$placebo$align     # "right"
#> [1] "right"