Cancel new line preventions in R's glue package

Question

In the glue package you "can use \\ at the end of a line to prevent adding a newline". In LaTeX \\ is the new line symbol.

I am looking for a better solution than my current one

glue_data(iris,
"\\midrule
\\textbf{{{mean(Petal.Length)}} & 820 &  100\\% \\\\
~other & 902 \\\\"
)

Actual output:

\midrule
\textbf{3.758} & 820 & 100\% \~other & 902 \\

Expected output:

\midrule
\textbf{3.758} & 820 &  100\% \\
~other & 902 \\

My current ugly and error-prone fix:

glue_data(iris,
"\\midrule
\\textbf{{{mean(iris$Petal.Length)}} & 820 &  100\\% \\\\\\
\n~other & 902 \\\\"
)

\midrule
\textbf{3.758} & 820 &  100\% \\
~other & 902 \\

Answer 1

A better method I found was to add the LaTeX linebreaks in as a variable to prevent them from being interpreted by glue:

lineb <- '\\\\'
glue_data(
  iris,
  "\\midrule
  \\textbf{{{mean(Petal.Length)}} & 820 &  100\\% {lineb}
  ~other & 902 \\\\"
)

Output

\midrule
\textbf{3.758} & 820 &  100\% \\
~other & 902 \\