accessible.tips/content/tips/_example.md

title	author	publishDate	lastMod	toc	draft	categories	tags
_ Example _	KemoNine	2023-03-16	2023-03-18	true	true	blog tips faq	example testing

Changelog

{{< changelog >}} {{< change 2023-03-17 "test change 1" >}} {{< change 2023-03-18 "test change 2" >}} {{< /changelog >}}

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Use [bbb]({{< ref "[category]/[file].md" >}}) for cross references

This sample post is mainly for blogdown users. If you do not use blogdown, you can skip the first section.

1. Markdown or R Markdown

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This is a post written in plain Markdown (*.md) instead of R Markdown (*.Rmd). The major differences are:

1. You cannot run any R code in a plain Markdown document, whereas in an R Markdown document, you can embed R code chunks (```{r});
2. A plain Markdown post is rendered through Blackfriday, and an R Markdown document is compiled by rmarkdown and Pandoc.

There are many differences in syntax between Blackfriday's Markdown and Pandoc's Markdown. For example, you can write a task list with Blackfriday but not with Pandoc:

• Write an R package.
• Write a book.
• ...
• Profit!

Similarly, Blackfriday does not support LaTeX math and Pandoc does. I have added the MathJax support to this theme (hugo-xmin) but there is a caveat for plain Markdown posts: you have to include math expressions in a pair of backticks (inline: `$ $`; display style: `$$ $$`), e.g., $S_n = \sum_{i=1}^n X_i$.^[This is because we have to protect the math expressions from being interpreted as Markdown.] For R Markdown posts, you do not need the backticks, because Pandoc can identify and process math expressions.

When creating a new post, you have to decide whether the post format is Markdown or R Markdown, and this can be done via the rmd argument of the function blogdown::new_post(), e.g.

blogdown::new_post("Post Title", rmd = FALSE)

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2. Sample Text

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Third-level header

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Fourth-level header

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A paragraph (with a footnote):

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.^[I'm sure you are bored by the text here.]

A blockquote (a gray bar at the left and lightgray background):

Quisque mattis volutpat lorem vitae feugiat. Praesent porta est quis porta imperdiet. Aenean porta, mi non cursus volutpat, mi est mollis libero, id suscipit orci urna a augue. In fringilla euismod lacus, vitae tristique massa ultricies vitae. Mauris accumsan ligula tristique, viverra nulla sed, porta sapien. Vestibulum facilisis nec nisl blandit convallis. Maecenas venenatis porta malesuada. Ut ac erat tortor. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Nulla sodales quam sit amet tincidunt egestas. In et turpis at orci vestibulum ullamcorper. Aliquam sed ante libero. Sed hendrerit arcu lacus.

Some code (with a drop-shadow effect):

(function() {
  var quotes = document.getElementsByTagName('blockquote'), i, quote;
  for (i = 0; i < quotes.length; i++) {
    quote = quotes[i];
    var n = quote.children.length;
    if (n === 0) continue;
    var el = quote.children[n - 1];
    if (!el || el.nodeName !== 'P') continue;
    // right-align a quote footer if it starts with ---
    if (/^—/.test(el.textContent)) el.style.textAlign = 'right';
  }
})();

A table (centered by default):

Sepal.Length	Sepal.Width	Petal.Length	Petal.Width	Species
5.1	3.5	1.4	0.2	setosa
4.9	3.0	1.4	0.2	setosa
4.7	3.2	1.3	0.2	setosa
4.6	3.1	1.5	0.2	setosa
5.0	3.6	1.4	0.2	setosa
5.4	3.9	1.7	0.4	setosa

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