4/14/2023 0 Comments Rmarkdown css![]() Bug reports are appreciated and can be logged on GitHub. To come are a few basic CSS tags that will be built into the package using specific CSS ids. The package has a few additional features including the ability to inject tags directly into R tables, see for an example of this. Tags = tags, update_css = TRUE, browse = TRUE, render = TRUE) Highlight_html(input = file, output = tempfile(fileext = '.html'), This will look something like the following using an example file from the package: library(highlightHTML)įile <- system.file('examples', 'bgtable.html', The function to use for the post-processing is highlight_html and requires three arguments, the input file, the output file, and the CSS tags themselves. The post-processing will add an id value for each cell with the #bgblue or #bgred and remove those from the table. ![]() After turning the markdown document into an html file, this package can now be used to post-process the html file. The addition of the #bgblue and #bgred indicates which cells will be changed. You could then add some conditional formatting by adding the following tags to the table. Suppose you have a table like the following: Color Name To get the most out of the package, rmarkdown and knitr are useful to have installed as well, although not required. The package was published on CRAN a few days ago and can be installed using install.packages: install.packages('highlightHTML') Below is a short demo of functions of interest. This has the advantage of allowing users a lot of flexibility with the look they wish to achieve, however, it will be more difficult for users if they do not know CSS. Since this package uses CSS for the formatting, knowledge of CSS is required to create the tags to be injected. An option I started working on a few years ago, highlightHTML, is a relatively simple package that will help inject CSS automatically into an HTML document to take care of formatting of text and tables. These packages however focus on table formatting. Other options include the ReporteRs and condformat packages. The most interesting to me is the formattable package. To help solve this problem, many R packages are useful for formatting tables, either through conditional formatting or otherwise. Markdown does have support for inline HTML, therefore you can add your own formatting inline using CSS or other HTML attributes, however this moves away from the quick markdown flavor. The main drawback of this approach is that formatting of documents is limited to italics, bold, or strikethrough. The documents can then be compiled using the knitr or rmarkdown packages to output formats such as HTML, latex, or even word. The whole spirit of oEmbed is, “Put a URL to a thing on its own line and we’ll try to make it into an embed for you.” It’s a clearly defined spec and there is a clear source of data of sites that support the feature.īut I suppose it’s a failing of oEmbed that people either don’t know about it or don’t use it.Markdown (and Rmarkdown) are great ways to quickly develop material without worrying about the formatting. What I think is a smidge funny is that… this is exactly what oEmbed is. …by the time the content makes its way to the DOM.Īs an owner of CodePen, I can’t help but to remind you that doing it this way means you can’t take advantage of having a theme or making it editable. For example, you put a URL to a Pen like this: So what this plugin does is allows you to drop a URL to the thing you’re trying to embed on its own line, and it’s magically transformed into embed code. ![]() Trying to embed well known services (like CodePen, CodeSandbox, Slides, SoundCloud, Spotify, Twitter or YouTube) into your Gatsby website can be hard, since you have to know how this needs to be done for all of these different services. This requires a mix of CSS knowledge and, in the case of R Markdown, an understanding of how HTML tags, IDs, and classes are used to wrap content from your R Markdown document. That’s the spirit behind gatsby-remark-embedder from Michaël De Boey, which I recently saw. To use CSS effectively, it’s critical to understand how to specificy which selectors one wishes to style. On Twitter, you click a down arrow thingy and choose Embed Tweet, then get forwarded to some other website where you choose options and ultimately get the embed code. For example, on CodePen, you visit any particular Pen to get the embed code, click “Embed” in the footer, choose options, and ultimately get the embed code. ![]() You do need to do whatever is necessary for that particular service though. But in general, you don’t need to do anything special to embed third-party media in Markdown. With YouTube specifically, there are other options. Markdown supports HTML, so if you need to, say, embed a YouTube video, you can just copy and paste the embed code from them, drop it into a Markdown document, and you should be good to go.
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