Rmarkdown beamer:如何左对齐标题页

Question

如何将我的Rmarkdown beamer演示文稿的标题页靠左对齐，而不是默认的居中？

例如，默认值为center：

---
title: "Untitled"
author: "S SS"
date: "2/4/2018"
output: beamer_presentation
---

```{r setup, include=FALSE}

knitr::opts_chunk$set(echo =假)

## R Markdown

This is an R Markdown presentation. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see <http://rmarkdown.rstudio.com>.

When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document.

​

​

Answer 1

这里有一个技巧，直到有人提出更好的答案:我们将省去标准的beamer标题幻灯片，只需格式化第一张幻灯片，就像它是标题幻灯片一样：

---
output: beamer_presentation
header-includes:
  - \usepackage{color}
---

\color{blue}
\LARGE{\textbf{This is the title}}  
\color{black}
\vspace{0.2cm}
\large{Author Name}  
\large{February 4, 2018}

```{r setup, include=FALSE}

knitr::opts_chunk$set(echo =假)

## R Markdown

This is an R Markdown presentation. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see <http://rmarkdown.rstudio.com>.

When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document.

​

​

Answer 2

您可以使用以下命令简单地切换到左对齐的标题页

\setbeamertemplate{title page}[default][left]

要在rmarkdown中使用它，请将该行放在一个名为preamble.tex的文件中，并使用

---
title: "Untitled"
author: "S SS"
date: "2/4/2018"
output: 
  beamer_presentation:
    includes:
      in_header: preamble.tex

---

test

​

​