Latex symbols in rmarkdown table using knitr::kable

问题

I am trying to use knitr::kable in Rmarkdown to create a table of latex equations. However, I am having difficulties getting special characters such as $\sum$ or $\hat$ to work. For example the following works:

knitr::kable(head(mtcars[,c(1,2)], 10),
         row.names = FALSE,
         col.names = c("Time", "$\\delta_{m}_1$"))

but when trying to include a hat or bar the following does not work:

knitr::kable(head(mtcars[,c(1,2)], 10),
         row.names = FALSE,
         col.names = c("Time", "$\\hat{m}_1$"))

Has anyone figured out how to embed these characters using kable?

Thanks

来源：https://stackoverflow.com/questions/48873875/latex-symbols-in-rmarkdown-table-using-knitrkable