Examples for Rmarkdown cookbook

knitr_child_ex1.Rmd

---
title: "Programmatically create a document"
date: "`r Sys.Date()`"
output:
  pagedown::html_paged:
    toc: true
    # change to true for a self-contained document, but it'll be a litte slower for Pandoc to render
    self_contained: false
---

```{r, include = FALSE}
template_file <- tempfile(pattern = "template", fileext = ".Rmd")
```


```{cat, engine.opts = list(file = template_file)}
<!-- you can write like in a rmarkdown file here --> 
# Child document for row {{row}}

This is an R Markdown child document.   
Voici la valeur des variables :   
  
- `Sepal.Length` : {{Sepal.Length}}
- `Sepal.Width` : {{Sepal.Width}}
- `Petal.Length` : {{Petal.Length}}
- `Petal.Width` : {{Petal.Width}}
- `Species` : {{Species}}

```

# About

This is a document composed of chapter from rows of a data frame 

```{r, include = FALSE}
library(purrr)
chunks <- iris %>%
  # add other variable in the table like row
  tibble::rownames_to_column("row") %>%
  purrr::pmap(function(...) {
    knitr::knit_expand(template_file, ...)
  })
res <- knitr::knit_child(text = unlist(chunks))
```

`r res`

```{r clean, include = FALSE}
unlink(template_file)
```

using-glue-template.Rmd

---
title: "Programmatically create a document"
date: "`r Sys.Date()`"
output:
  pagedown::html_paged:
    # change to true for a self-contained document, but it'll be a litte slower for Pandoc to render
    toc: true
    self_contained: false
  html_document: default
---

```{r, include = FALSE}
library(purrr)
chunks <- iris %>%
  # add other variable in the table like row
  tibble::rownames_to_column("row") %>%
  glue::glue_data("
# Child document for row {row}

This is an R Markdown child document.
Voici la valeur des variables :

- `Sepal.Length` : {Sepal.Length}
- `Sepal.Width` : {Sepal.Width}
- `Petal.Length` : {Petal.Length}
- `Petal.Width` : {Petal.Width}
- `Species` : {Species}

") %>%
  glue::glue_collapse(sep = "\n")
```


# About

This is a document composed of chapter from rows of a data frame 

`r chunks`

yes you're right. I think you can't without any escaping. It is more like

you can write like in a markdown file.

I'll work on a clever example