Insert hlines into table
tab_hlines(data, hline_at = NULL, hline_from = NULL, ...)the table data frame
logical or integer vector specifying rows above which an
\hline will be placed; see also st_hline()
a character column name from which to separate the table
with \hline; non-duplicated values of hline_from will be used to create
the split; see also st_hline()
not used