Using DiagrammeR in Word document (generated using rMarkdown) - r

Question

I've been looking at the diagrammeR package (http://rich-iannone.github.io/DiagrammeR/) to generate diagrams in rMarkdown. This works great when rendering the documents in HTML; now the question I have is whether there is a possibility to output the document as MS Word document?
For example, consider this:
---
title: "Test"
author: "Test"
date: "Monday, May 18, 2015"
output: html_document
---
```{r, echo=FALSE, warning=FALSE}
if (!require("DiagrammeR")) library("DiagrammeR")
```
Check out this diagram:
```{r, echo=FALSE, results='asis'}
DiagrammeR::grViz("
digraph rmarkdown {
node [shape = box ]
'A' -> 'B'
}
")
```
Using HTML as output format works like a charm. But, when I switch to MS Word, all I get is:
Error: Functions that produce HTML output found in document targeting docx output.
Please change the output type of this document to HTML.
Any ideas would be appreciated.
Many thanks, Philipp

Answer 1

trelliscope is useful: https://github.com/tesseradata/trelliscope
After installing http://phantomjs.org/download.html,
You can generate word doc file by:
---
title: "Test"
author: "Test"
date: "Monday, May 18, 2015"
output: word_document
---
```{r include=FALSE}
if (!require("DiagrammeR")) library("DiagrammeR")
library(trelliscope)
```
Check out this diagram:
```{r, include=FALSE}
p = DiagrammeR::grViz("
digraph rmarkdown {
node [shape = box ]
'A' -> 'B'
}
")
widgetThumbnail(p, paste0(getwd(), "/hoge.png"))
```
![](hoge.png)
Here is the screenshot. It looks perfect :)