Append r output in the title of rmarkdown document

Question

How to append r output in the title of rmarkdown document? Can anyone help?

Answer 1

Insert with `r <code> ` withion markdown text to add r output in rmarkdown document.

Ex: 

---
title: "Rmarkdown Parameters"
output: pdf_document
---

# Markdown document - `r example`

```{r}
example <- "This is an example document"
```

Ex: 

---
title: "Rmarkdown Parameters"
output: pdf_document
---

# Markdown document - `r example`

```{r}
example <- "This is an example document"
```