如何在knitr和RStudio中为word和html设置不同的全局选项? [英] How to set different global options in knitr and RStudio for word and html?

问题描述

我正在使用RStudio 0.98.932和knitr 1.6.想要为word和html设置不同的全局编织选项.例如，要将word的fig.width和fig.height设置为6，将html设置为11.

I am using RStudio 0.98.932 and knitr 1.6. Would like to set different global knitr options for word and html. For example, want to set fig.width and fig.height as 6 for word and 11 for html.

如果rmd文件的输出格式可用，我可以编写一些代码来切换设置.我应该怎么做?感谢您的任何建议.

I can write some codes to switch the setting if it is available for the output format of a rmd file. How should I do this? Thanks for any suggestions.

推荐答案

尝试将此代码块放在Rmd文档的开头.

Try putting this code chunk at the beginning of the Rmd document.

```{r setup, cache=FALSE, include=FALSE}
library(knitr)
output <- opts_knit$get("rmarkdown.pandoc.to")
if (output=="html") opts_chunk$set(fig.width=11, fig.height=11)
if (output=="docx") opts_chunk$set(fig.width=6,  fig.height=6)
```

opts_knit$get()返回的软件包选项之一是markdown.pandoc.to.根据选择的输出格式(HTML，Word或PDF)，显然可以将其设置为"html"，"docx"或"latex".因此，您可以对其进行测试并相应地设置块选项fig.width和fig.height.

One of the package options returned by opts_knit$get() is markdown.pandoc.to. This is evidently set to "html", "docx", or "latex" depending on the chosen output format (HTML, Word, or PDF). So you can test that and set the chunk options fig.width and fig.height accordingly.

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