Add a table of content to HTML files generated from R Markdown

Update November 2014

With the new version of knitr and Rmarkdown, the custom function is not necessary anymore. One can add a yaml at the beginning of a Rmd file:

---
title: "Development scrap concerning the input data"
output:
  html_document:
    toc: true
---

Old content from January 2014

Knitr creator Yihui explained in a comment on this forum how to add a table of content to a Rmd file using the knit2html() function:

library(knitr)
knit2html('docs/clean.example.Rmd', options = c('toc', markdown::markdownHTMLOptions(TRUE)))

I followed the RSTUDIO advice on how to customize markdown rendering.
A .Rprofile  at the root of my project directory with the following content does the tric:

options(rstudio.markdownToHTML =
  function(inputFile, outputFile) {     
    require(markdown)
    htmlOptions <- defaults="TRUE)<br" markdownhtmloptions="">    htmlOptions <- br="" c="" htmloptions="" toc="">    markdownToHTML(inputFile, outputFile, options = htmlOptions)
  }
)

I works, I can now use the RStudio button "knit html" or the shortcut CTRL+SHIFT+H and get an html file that includes a table of content!

Data Visualisation Tools

A list of Data visualisation tools I've tried.

Desktop tools

• R with ggplot2 package
• Excel with pivot tables and charts

Web tools:

• R based
• R Shiny turn R analysis into a web application
• GoogleVis
• OpenCPU
• Python based
• IPython Notebook

Sample websites:

• Markus Kainu
• Rpubs/Paul4forest

Data storage tools:

• Python Datastore API

if (window.focus) window.focus()

Object detection The whole point is that if you want to use the array document.images, first check if it is supported. If you want to use the focus method of the window, first check if it is supported.

If you always use object detection, your scripts will never generate any error messages, although they might not work in certain browsers.