The R tutorial content displayed on https://plotly.com/r/ and https://plotly.com/ggplot2/ is not authored in this repository. It lives in plotly/plotly.r-docs and is fetched into this repo at build time by make fetch_upstream_files.

• Tutorial content (Rmd files, chart examples, prose): edit the source files in plotly/plotly.r-docs. See that repo's README for authoring instructions.
• The R landing/index pages that appear on https://plotly.com/r/ (sidebar, categories, etc.) — for example 2015-07-30-r-index.md and the various *-index.md files in this directory: edit those files directly in this repository under _posts/r/.

To preview R documentation locally, follow the setup steps in the main README.md, then run:

make fetch_upstream_files
bundle exec jekyll serve --config _config_dev.yml

fetch_upstream_files clones the latest built R and ggplot2 content into _posts/r/md/ and _posts/ggplot2/md/. Without it, the R tutorial pages will not render locally.

Open a pull request against the master branch of plotly/graphing-library-docs for changes to the R landing pages, or against plotly/plotly.r-docs for changes to tutorial content. A Plotly maintainer will review.

Search on https://plotly.com/r/ is powered by an Algolia index that is updated separately. See the Search indices section of the main README for how to update the R search index.