Location helper for targeting the column labels

The cells_column_labels() function is used to target the table's column labels when applying a footnote with tab_footnote() or adding custom style with tab_style(). The function is expressly used in each of those functions' locations argument.

cells_column_labels(columns)

Arguments

columns	The names of the column labels that are to be targeted.

Value

A list object with the classes cells_column_labels and location_cells.

Details

When using any of the location helper functions with an appropriate function that has a locations argument, multiple locations can be targeted by enclosing several cells_*() helper functions in a list(). The following helper functions can be used to target cells (roughly in order from the top to the bottom of a table):

• cells_title(): targets the table title or the table subtitle depending on the value given to the groups argument ("title" or "subtitle").

• cells_stubhead(): targets the stubhead location, a cell of which is only available when there is a stub; a label in that location can be created by using the tab_stubhead() function.

• cells_column_spanners(): targets the spanner column labels, which appear above the column labels.

• cells_column_labels(): targets the column labels.

• cells_row_groups(): targets the row group labels in any available row groups using the groups argument.

• cells_stub(): targets row labels in the table stub using the rows argument.

• cells_body(): targets data cells in the table body using intersections of columns and rows.

• cells_summary(): targets summary cells in the table body using the groups argument and intersections of columns and rows.

• cells_grand_summary(): targets cells of the table's grand summary using intersections of columns and rows

Figures

Function ID

7-8

See also

Other Helper Functions: adjust_luminance(), cell_borders(), cell_fill(), cell_text(), cells_body(), cells_column_spanners(), cells_grand_summary(), cells_row_groups(), cells_stubhead(), cells_stub(), cells_summary(), cells_title(), currency(), escape_latex(), gt_latex_dependencies(), html(), md(), pct(), px(), random_id()

Examples

# Use `sza` to create a gt table; add a
# header and then add footnotes to the
# column labels with `tab_footnote()` and
# `cells_column_labels()` in `locations`
tab_1 <-
  sza %>%
  dplyr::filter(
    latitude == 20 & month == "jan" &
      !is.na(sza)
  ) %>%
  dplyr::select(-latitude, -month) %>%
  gt() %>%
  tab_footnote(
    footnote = "True solar time.",
    locations = cells_column_labels(
      columns = vars(tst)
    )
  ) %>%
  tab_footnote(
    footnote = "Solar zenith angle.",
    locations = cells_column_labels(
      columns = vars(sza)
    )
  )