| Literal | R Documentation | 
This allows insertion of arbitrary LaTeX text into a table.
Literal(x, nearData = TRUE)
| x | A character string to insert. | 
| nearData | See the Details section of  | 
In LaTeX the literal string should usually end with a % comment
character to avoid having a blank line inserted.
Produces an expression to insert a label containing the literal text.
Hline, which uses this to insert lines.
tabular( (Literal("Some text") + Species)  ~ 
       All(iris)*mean, data=iris )
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