[feature request] Add option to remove header/footer border

[zenggyu]

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Some academic journals require that borders of table header and table footer (see below for an example taken from the intro page) be removed before submission, but currently I don't see any option to do this in gt.

I think it'd be nice to have such feature.

[zenggyu]

I just found that cells_borders() may be the way to do it , but unfortunately it does not work as expected:

library(gt)
mtcars %>%
  head() %>%
  gt() %>%
  tab_header("Table 1. mtcars dataset") %>%
  tab_style(style = cell_borders(sides = "top", weight = px(0)),
            locations = cells_title("title"))

[rich-iannone]

Thanks, this is a really good suggestion! In gt, I think we eventually want to get to a point where every single line and cell can be accessed and modified (and we actually need this for theming).

[rich-iannone]

Hi @zenggyu , this issue should be resolved now. Now you can take any gt table object and use these options (from tab_options()):

gt_table %>%
  tab_options(
    table.border.top.style = "hidden",
    table.border.bottom.style = "hidden"
  )

[balthasars]

There is an even more specific solution to remove the border below your footnotes:

gt_table |>
  tab_options(
    footnotes.border.bottom.style = "hidden"
  )

Mentioning this because table.border.bottom.style = "hidden" will also remove formatting of table borders you may have previously applied.