The cells_grand_summary() function is used to target the cells in a grand
summary and it is useful when applying a footnote with tab_footnote() or
adding custom styles with tab_style(). The function is expressly used in
each of those functions' locations argument.
cells_grand_summary(columns = TRUE, rows = TRUE)
| columns | The names of the columns that are to be targeted. |
|---|---|
| rows | The names of the rows that are to be targeted. |
A list object with the classes cells_summary and location_cells.
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

7-13
Other Helper Functions:
adjust_luminance(),
cell_borders(),
cell_fill(),
cell_text(),
cells_body(),
cells_column_labels(),
cells_column_spanners(),
cells_row_groups(),
cells_stubhead(),
cells_stub(),
cells_summary(),
cells_title(),
currency(),
escape_latex(),
gt_latex_dependencies(),
html(),
md(),
pct(),
px(),
random_id()
# Use `countrypops` to create a gt table; add # some styling to a grand summary cell with # with `tab_style()` and `cells_grand_summary()` tab_1 <- countrypops %>% dplyr::filter( country_name == "Spain", year < 1970 ) %>% dplyr::select(-contains("country")) %>% gt(rowname_col = "year") %>% fmt_number( columns = vars(population), decimals = 0 ) %>% grand_summary_rows( columns = vars(population), fns = list( change = ~max(.) - min(.) ), formatter = fmt_number, decimals = 0 ) %>% tab_style( style = list( cell_text(style = "italic"), cell_fill(color = "lightblue") ), locations = cells_grand_summary( columns = vars(population), rows = 1) )