在Rmarkdown中调整YAML中的Reveal.initialize

Question

我有一个用Rmarkdown制作的带有这个YAML头的revealjs演示文稿：

---
title: "My title"
author: "My name"
date: November 20, 2018
output: 
  revealjs::revealjs_presentation:
      css: styles.css
---

它工作得很完美，但现在我想在Reveal.initialize中调整width。现在，我直接在生成Rmarkdown的html中执行此操作，几乎在文件的末尾：

// Full list of configuration options available at:
// https://github.com/hakimel/reveal.js#configuration
Reveal.initialize({
    width: 1000,
    // Push each slide change to the browser history
    history: true,
    // Vertical centering of slides
    center: false,
    // Transition style
    transition: 'default', // none/fade/slide/convex/concave/zoom
    // Transition style for full page slide backgrounds
    backgroundTransition: 'default', // none/fade/slide/convex/concave/zoom

我希望的是能够从Rmarkdown的YAML中做到这一点。我尝试过这种方式，但它不起作用：

---
title: "My title"
author: "My name"
date: November 20, 2018
output: 
  revealjs::revealjs_presentation:
      css: styles.css
  revealjs::revealjs_config:
      width: 1200
---

有什么想法吗？

Answer 1

最后，我找到了正确的方法：

---
output: 
  revealjs::revealjs_presentation:
    css: styles.css
    reveal_options:
      width: 1200
---