r - Split the title onto multiple lines?

Question

In an R markdown document (html and presentations), is it possible to manually split the title onto multiple lines? I tried playing with pipes which produces orrendous output.

---
title:  'A title I want to split on two lines'
author: 
date: 
output:
  ioslides_presentation
---

Answer 1

For an HTML output just us the <br> tag while if your output is a PDF or PDF presentation standard LaTeX code to break line given by \ should work.

Example

---
title:  'A title I want to <br> split on two lines'
author: 
date: 
output:
  ioslides_presentation
---

For PDF

Just to rule out possibilities, I've tried to put \ or ewline, both do not split, so for PDF seems to be a little bit tricky. linebreak stop knitr parsing. Maybe another user can solve this question for knitr PDFs.