---
title: "sample"
output: pdf_document
header-includes:
- \usepackage{booktabs}
---

```{r global_options, R.options=knitr::opts_chunk$set(warning=FALSE, message=FALSE)}
```


```{r sample, echo=FALSE, results='asis'}
library(knitr)
library(xtable)

t1 <- kable(head(mtcars)[1:3], format = "latex", booktabs = TRUE)
t2 <- kable(head(mtcars)[4:6], format = "latex", booktabs = TRUE)

```

\begin{table}[!htb]
    \begin{minipage}{.5\linewidth}
      \caption{}
      \centering,
       `r t1`,
    \end{minipage}%
    \begin{minipage}{.5\linewidth}
      \centering
        \caption{},
        `r t2`,
    \end{minipage}
\end{table}