cells_title() is used to target the table title or subtitle
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. The header location where the title and optionally the
subtitle reside is generated by the tab_header() function.
cells_title(groups = c("title", "subtitle"))A list object of classes cells_title and location_cells.
Specification of groups
mult-kw:[title|subtitle] // default: c("title", "subtitle")
We can either specify "title", "subtitle", or both (the default) in a
vector to target the title element, the subtitle element, or both elements.
Use a subset of the sp500 dataset to create a small gt table. Add a
header with a title, and then add a footnote to the title with
tab_footnote() and cells_title() (in locations).
sp500 |>
dplyr::filter(date >= "2015-01-05" & date <= "2015-01-10") |>
dplyr::select(-c(adj_close, volume, high, low)) |>
gt() |>
tab_header(title = "S&P 500") |>
tab_footnote(
footnote = "All values in USD.",
locations = cells_title(groups = "title")
)

8-12
v0.2.0.5 (March 31, 2020)
Other location helper functions:
cells_body(),
cells_column_labels(),
cells_column_spanners(),
cells_footnotes(),
cells_grand_summary(),
cells_row_groups(),
cells_source_notes(),
cells_stub(),
cells_stub_grand_summary(),
cells_stub_summary(),
cells_stubhead(),
cells_summary(),
location-helper