R Markdown keywords don't appear in the document

Question

I want to knit a pdf-document but the keywords don't appear in the final document. Can someone say me what I'm doing wrong?

---
title: "title"
subtitle: "subtitle"
author: "author"
date: "09 04 2019"
output:
  pdf_document:
keywords: "word1, word2, word3"
footerdate: yes
abstract: 'Insert abstract here'
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

# Introduction

Possible duplicate of [knitr/pandoc: article template supporting keywords: and linespacing:](https://stackoverflow.com/questions/37978637/knitr-pandoc-article-template-supporting-keywords-and-linespacing) — A. Stam, Apr 09 '19 at 10:07
Yes, the problem is that the default template `rmarkdown` provide in https://github.com/rstudio/rmarkdown/blob/master/inst/rmd/latex/default.tex does not contain `keyword`. You can always use a custom template by copying the one in github and customize it can be the easiest way. — TheRimalaya, Apr 09 '19 at 10:15
Is there no way to change my code, that I can add the keywords in the header? — TobKel, Apr 09 '19 at 10:25
As specified in my linked question, you can create a custom template but there is no way to simply change the R code to get the desired result. — A. Stam, Apr 09 '19 at 11:09
you can add a line to an existing header element to approximate the result you're looking for, keeping in mind the line will inherit the style of whatever element you choose to extend. `date: | | "09 04 2019" | "keywords: word1, word2, word3"` — Raoul Duke, Apr 09 '19 at 14:37

score 0 · Answer 1 · answered Apr 09 '19 at 10:06

0

When knitting to PDF, keywords are sent to the file metadata but are not actually visible in the file. Source

answered Apr 09 '19 at 10:06

A. Stam

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Carlos Luis Rivera · Answer 2 · 2021-08-04T07:36:53.680

You can customize the template for PDF generation or render Rmd files with base_format: rticles::elsevier_article. However, there is another way to show keywords on the PDF just by adding few codes to the Rmd file:

Add a LaTeX code to provide the \keyword command (\providecommand{\keywords}[1]{\textbf{\textit{Keywords---}} #1}) into YAML's header-includes key;
Add keywords in the text section using the LaTeX command

---
title: "title"
subtitle: "subtitle"
author: "author"
date: "09 04 2019"
output:
  pdf_document:
# keywords: "word1, word2, word3" # <- You don't have to add your keywords here since they only appear as the 'invisible' metadata of PDF
footerdate: yes
abstract: 'Insert abstract here'
header-includes:
  - |
    ```{=latex}
    \providecommand{\keywords}[1]{\textbf{\textit{Keywords---}} #1}
    ```
---

```{=latex}
\keywords{word1, word2, word3}
```

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

# Introduction

R Markdown keywords don't appear in the document

2 Answers2