@Frank lưu ý rằng giá trị mặc định cho
---
title: "myreport"
author: "Andrea Panizza"
date: "`r Sys.Date[]`"
output: html_document
params:
output_dir: "../foobar"
---
```{r setup, include=FALSE}
knitr::opts_chunk$set[echo = TRUE]
library[readr]
# Set output directory
data_dir