Add a horizontal line to a LaTeX table.

This function inserts a LaTeX directive to draw a full or partial line in a table.

Usage

Hline(columns, nearData = FALSE)

Arguments

columns: Which columns should receive the line?
nearData: See the Details section of Heading.

Details

Hline() is not very flexible: it must be the leftmost header in a row specification for the table, i.e. mean * Hline() is not allowed. Anything to the right of the Hline() factor will be ignored.

Value

Produces an expression to insert a label which will be interpreted by LaTeX as a request for a horizontal line.

Examples

toLatex( tabular( Species + Hline() + 1 ~ mean*Sepal.Width, data=iris) )
#> \begin{tabular}{lc}
#> \hline
#>  & \multicolumn{1}{c}{mean} \\ 
#> Species  & \multicolumn{1}{c}{Sepal.Width} \\ 
#> \hline
#> setosa  & $3.428$ \\
#> versicolor  & $2.770$ \\
#> virginica  & $2.974$ \\
#> \hline %  &  \\
#> All  & $3.057$ \\
#> \hline 
#> \end{tabular}