How to remove the % lines in xtable table output by Knitr

Question

By using xtable and knitr, I add a table to my RMD document and export to PDF file.

```{r, results='asis'}
library(xtable)
xtable(matrixtable)
````

It looks great except there is a line

% latex table generated in R 3.1.0 by xtable 1.7-3 package % Wed Jun 25 13:34:57 2014

How can I remove this line. I tried to set message=FALSE but it doesn't work.

Solution 1

The inclusion of the comment in the final table is defined by the comment argument to print.xtable

the default value for this is getOption('xtable.comment',TRUE).

so, if you set

options(xtable.comment = FALSE)

then for any future tables this comment will not produced.

Solution 2

You can put in directly in the print statement like so:

xtb=xtable(...)
print(xtb, comment=FALSE)

Comments

[MichaelChirico]

important to distinguish that this approach will fix the issue permanently, while @Daniel's will do it case-by-case