How can we pass pandoc_args to yaml header in rmarkdown?

Question

I\'m using rmarkdown to produce a word (.docx) report. I would like to change the header of the toc. This seems possible as pandoc_args can be passed as options

Answer 1

The title of the table of contents is document metadata, so you can set it with YAML metadata block.

---
title: "yaml header"
author: "cedric"
output:  
  word_document:
    toc: true
toc-title: "Table des matières"
---

Or passed it in with the -M command-line flag.

---
title: "yaml header"
author: "cedric"
output:  
  word_document:
    toc: true
    pandoc_args: [
      "-M", "toc-title=Table des matières"
    ]
---