yihui | Personal website of Yihui Xie | Static Site Generator library

If I use \FloatBarrier to maintain the desired order of the document, I get the following error and can't knit the PDF (specifically happens with PDF). It worked probably six months ago.

I want to create a footer within the float for a figure created with ggplot2 in an rmarkdown document that is generating a .pdf file via LaTeX.

My question: Is there a way within rmarkdown/knitr to add more LaTeX commands within the figure environment?

Specifically, I'd like to find a way to insert custom LaTeX using either the floatrow or caption* macro as described in https://tex.stackexchange.com/questions/56529/note-below-figure within the figure environment.

When I looked at the chunk options (https://yihui.org/knitr/options/#plots), something like out.extra seems close to what I want, but that is used as an extra option to \includegraphics while I want access to put extra LaTeX within the figure environment, outside of any other LaTeX command.

For my jekyll blog, I'm knitting Rmd to Md for the posts. At somewhere (preferably top), I want to programmatically add a link to view the source page (Rmd) hosted under _sources folder in top level directory.

Similar implementation can be found at https://yihui.org/en/about/ (at the left sidebar- Edit this page option)

Can this be done by some modification in custom knit command? OR Some html-include with liquid syntax should be used?

As explained in this chapter of the R Markdown Cookbook, it is possible to make custom blocks in R Markdown files with this syntax (here, to center some text):

From RStudio I have created a new file, File / New File / R Markdown, I have tried to generate the .pdf file from knitr / knitr to PDF, and the error that I reproduce below occurs, I am starting with LaTeX and I do not know very well what make. I appreciate your help.

Console RStudio:

I would like to extract the github repo url for all the packages on CRAN. And I have tried to first read the link of CRAN and get the table of all the package names, which also contains the url for the description page of each package, for I want to extract the github repo url through the description page. But I can't get the completed url. Could you please help me with this? Or is there any better way to get the repo url for all packages?

This is my supplementary ： Actually, I want to filter the pkgs that do have a official github repo, like some pkgs as xfun or fddm. And I found I can extract the username and repo name from the description of pkgs on CRAN, and put them in a github formatted url. (for most of them have the same format url like : https://github.com/{username}/{reponame}. For example, for package xfun , it would be like : https://github.com/yihui/xfun.

And now, I have get some of them like : (three of them)

enter image description here

And I am wondering how could I get the url for all of them. I know use glue pkg can replace the elements in a url. and for get the url by replacing elements (username and reponame) I have tried map() and map_dfr() function. But it returns me error : Error in parse_url(url) : length(url) == 1 is not TRUE

Here is my code :

I am looking to create unique/individual reports for a given list of vendors. The ideal output format would be a seperate html file of the given vendors information.

The issue is that I am having trouble wrapping my head around creating parameterized reports in RMarkdown. I have been taking a look at this link to understand how to loop/iterate through RMarkdown reports

To illustrate and share the logic of what I want to execute is the following:

According to the rmarkdown cookbook, using knitr::include_url should produce an inline frame of the webpage (note that it works and contains images):

But when I do the exact same thing in HTML document, I see no images in my inline frame, and I am not sure why:

In case it helps, here are some more details:

YAML for my document

I am gradually building an R Markdown (.RMD) file, learning by doing. I was able to insert a couple of tables, but I had a problem with one of them. The initial setup is: