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I am learning to use Rmarkdown to prepare my technical document. One thing I am trying to figure out is how to center the headers? Do you guys have any ideas??
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To center images, text, and anything else in Github markdown and READMEs simply wrap the element in an HTML tag with the align attribute set to "center" .
To center an image using the knitr::include_graphics() function, include it within an R code chunk that has the fig. align='center' option (and perhaps other options to control width, etc.). For example: Be sure to include the echo = FALSE chunk option to prevent the chunk source code from being printed.
By default, all text in Markdown fields are aligned to the left. You can also align to the right, or center the content by wrapping the text in div tags.
The option for centering a plot you generated by R code in Rmd file and that for an existing figure from a file elsewhere is different. For the figures you generated in R, I think fig. align="center" is sufficient, even if you want a PDF output. For <center> <\center> to work, you can only use an HTML output.
You can mix html with markdown. For example
<center> <h1>heading 1</h1> </center> There may be ways to center actual markdown instead of centering html, but that's easy enough.
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You can use CSS to adjust the alignment of headings.
For example, you may center section headings of level 1, 2, and 3 with the CSS code below:
h1, h2, h3 { text-align: center; } Extracted from: https://bookdown.org/yihui/rmarkdown-cookbook/center-heading.html
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