knitr - 用 ggvis 将 RMarkdown 编织到 Word

Question

当我尝试使用 ggvis 编织 RMarkdown 文档时绘图到 Word，我从 Rstudio 收到以下消息。

Error: Functions that produce HTML output found in document targeting docx output.
Please change the output type of this document to HTML.
Execution halted

是否存在一个优雅的解决方案(无需太多努力)来实现这一点，也许使用 export_png和 vg2png ?

Answer 1

这是一个例子:

```{r setup, include=FALSE}
library(dplyr)
library(ggvis)
```

The following table looks fine...
As long as I don't include this plot below

```{r, echo=FALSE, include=FALSE}
p <- pressure %>%
  ggvis(x = ~temperature, y = ~pressure) %>%
  layer_bars()
export_png(p, file = "hoge.png")
```

![](hoge.png)

如果你会经常使用这个，你可以定义钩子(Hook)。