CODEWITHSUNDEEP
rknitrr-markdown
Topchi
Topchi

Reputation: 333

Knitr generating very large html files

I am trying to use Knitr to write simple text-only html pages, but the file sizes are extremely large - 700KB for a 1 line RMarkdown. I am on R 3.4.0, and R Studio 1.0.143

For example, the following RMarkdown file generates a 695 kb file. When I look at the source, that is because there is a huge amount of base 64 code under the script tag. Is there anything that can be done to make the file size more compact, say a couple of KBs that I would expect it to be

(eg script src="data:application/x-javascript;base64,LyohIGpRdW...and this goes on and on forever)

---
title: "This is  a test"
author: "Mukul Pareek"
date: "June 7, 2017"
output: html_document
---


## This is a test file which when knit to html is 695KB

Upvotes: 8

Views: 2104

Answers (3)

Sally_ar
Sally_ar

Reputation: 126

A more recent approach would be using prettydoc package. Refer to https://github.com/yixuan/prettydoc for more information.

Upvotes: 0

Yihui Xie
Yihui Xie

Reputation: 30174

The key to reduce the HTML file size is to set theme: null, which means to get rid of the giant Twitter Bootstrap styles. Below are a few examples:

---
title: "This is  a test"
author: "Mukul Pareek"
date: "June 7, 2017"
output:
  html_document:
    theme: null
  html_vignette: default
  prettydoc::html_pretty: default
---


## This is a test file which when knit to html is 695KB

html_document(theme = NULL) returns a 44kb file; html_vignette returns 6.1kb; prettydoc::html_pretty returns 63.7kb (you need to install the prettydoc package). If you want a "flashy" style, I think prettydoc has achieved a great balance between styles and file sizes; otherwise you have to bear with those "vanilla" styles.

Upvotes: 7

Andrey Shabalin
Andrey Shabalin

Reputation: 4614

My ad-hoc solution is to use the BiocStyle style from Bioconductor. This reduces the html file size to 50 kb.

---
title: "This is  a test"
author: "Mukul Pareek"
date: "June 7, 2017"
output: 
  BiocStyle::html_document
---

A more extreme solution is found here: How to render HTML from RMarkdown without javascript in output

It produces an html file smaller than 1 kb.

---
title: "This is  a test"
author: "Mukul Pareek"
date: "June 7, 2017"
output: 
  html_document:
    theme: null
    highlight: null
    mathjax: null
---

Upvotes: 4

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