It is exciting for us to see the amazing growth of the R Markdown ecosystem over the four years since the creation of R Markdown in 2014. Now you can author many types of documents, and build a wide range of applications based on R Markdown. As an effort to unite and improve the documentation of the R Markdown base package (rmarkdown) and several other extensions (such as bookdown, blogdown, pkgdown, flexdashboard, tufte, xaringan, rticles, and learnr) in one place, we authored a book titled “R Markdown: The Definitive Guide”, which is to be published by Chapman & Hall/CRC in about two weeks. Read more →

A security vulnerability in a third-party library used by RStudio Connect was uncovered during a security audit last week. We have confirmed that this vulnerability has not been used against any of the RStudio Connect instances we host, and are unaware of it being exploited on any customer deployments. Under certain conditions, this vulnerability could compromise the session of a user that was tricked into visiting a specially crafted URL. The issue affects all versions of RStudio Connect up to and including 1. Read more →

This is a significant release for Shiny, with a major new feature that was nearly a year in the making: support for asynchronous operations! Without this capability, when Shiny performs long-running calculations or tasks on behalf of one user, it stalls progress for all other Shiny users that are connected to the same process. Therefore, Shiny apps that feature long-running calculations or tasks have generally been deployed using many R processes, each serving a small number of users; this works, but is not the most efficient approach. Read more →

RStudio Connect version 1.6.4 is now available! There are a few breaking changes and a handful of new features that are highlighted below. We encourage you to upgrade as soon as possible! Breaking Please take note of important breaking changes before upgrading. Pandoc 2 RStudio Connect includes Pandoc 1 and will now also include Pandoc 2. Admins do not need to install either. If you have deployed content with rmarkdown version 1. Read more →

Join Max Kuhn of RStudio for his popular Applied Machine Learning Workshop in Washington D.C.! If you’d missed his sold out course at rstudio::conf 2018 now is your chance. Register here: https://www.rstudio.com/workshops/applied-machine-learning/ This two-day course will provide an overview of using R for supervised learning. The session will step through the process of building, visualizing, testing, and comparing models that are focused on prediction. The goal of the course is to provide a thorough workflow in R that can be used with many different regression or classification techniques. Read more →

We’re pleased to announce that sparklyr 0.8 is now available on CRAN! Sparklyr provides an R interface to Apache Spark. It supports dplyr syntax for working with Spark DataFrames and exposes the full range of machine learning algorithms available in Spark ML. You can also learn more about Apache Spark and sparklyr at spark.rstudio.com and the sparklyr webinar series. In this version, we added support for Spark 2. Read more →

We are looking for our next Enterprise Advocate to join the RStudio team. See what Pete Knast, Global Director of New Business, has to say about working at RStudio and the Enterprise Advocate role. When did you join RStudio and what made you interested in working here? I joined in early 2014. I was excited by RStudio since I love helping people and being an open source company RStudio seemed like a great way to reach a lot of people and get to assist with numerous interesting use cases. Read more →

leaflet 2.0.0 is now on CRAN! The leaflet R package wraps the Leaflet.js JavaScript library, and this release of the R package marks a major upgrade from the outdated Leaflet.js 0.7.x to the current Leaflet.js 1.x (specifically, 1.3.1). Leaflet.js 1.x includes some non-backward-compatible API changes versus 0.7.x. If you’re using only R code to create your Leaflet maps, these changes should not affect you. If you are using custom JavaScript, some changes may be required to your code. Read more →

RStudio Connect version 1.6.2 is now available! There are a handful of new features that are highlighted below. We encourage you to upgrade as soon as possible! Recommend Building R from Source If you have installed R using apt-get, yum, or some other package manager, we recommend that you install R from source instead. This protects you from application breakages when the system version of R is upgraded. We have updated our documentation to reflect these best practices concerning R administration for use with Connect. Read more →

Two years ago, Wes McKinney and Hadley Wickham got together to discuss some of the systems challenges facing the Python and R communities. Data science teams inevitably work with multiple languages and systems, so it’s critical that data flow seamlessly and efficiently between these environments. Wes and Hadley wanted to explore opportunities to collaborate on tools for improving interoperability between Python, R, and external compute and storage systems. This discussion led to the creation of the feather file format, a very fast on-disk format for storing data frames that can be read and written to by multiple languages. Read more →