You are currently browsing the category archive for the ‘Shiny’ category.
Shiny 0.13.0 is now available on CRAN! This release has some of the most exciting features we’ve shipped since the first version of Shiny. Highlights include:
- Shiny Gadgets
- HTML templates
- Shiny modules
- Error stack traces
- Checking for missing inputs
For a comprehensive list of changes, see the NEWS file.
To install the new version from CRAN, run:
Read on for details about these new features!
Update Nov 2 2015: Wow, that was fast. Registration is full. If you add yourself to the waitlist, we’ll contact you first if/when we do this conference again.
In the three years since we launched Shiny, our focus has been on helping people get started with Shiny. But there’s a huge difference between using Shiny and using it well, and we want to start getting serious about helping people use Shiny most effectively. It’s the difference between having apps that merely work, and apps that are performant, robust, and maintainable.
That’s why RStudio is thrilled to announce the first ever Shiny Developer Conference, to be held at Stanford University on January 30-31, 2016, three months from today. We’ll skip past the basics, and dig into principles and practices that will simultaneously simplify and improve the robustness of your code. We’ll introduce you to some brand new tools we’ve created to help you build ever larger and more complex apps. And we’ll show you what to do if things go wrong.
Check out the agenda to see the complete lineup of speakers and talks.
We’re capping the conference at just 90 people, so if you’d like to level up your Shiny skills, register now at http://shiny2016.eventbrite.com.
Hope to see you there!
Note that this conference is intended for R users who are already comfortable writing Shiny apps. We won’t cover the basics of Shiny app creation at all. If you’re looking to get started with Shiny, please see our tutorial.
RStudio will again teach the new essentials for doing (big) data science in R at this year’s Strata NYC conference, September 29 2015 (http://strataconf.com/big-data-conference-ny-2015/public/schedule/detail/44154). You will learn from Garrett Grolemund, Yihui Xie, and Nathan Stephens who are all working on fascinating new ways to keep the R ecosystem apace of the challenges facing those who work with data.
- R Quickstart: Wrangle, transform, and visualize data
Instructor: Garrett Grolemund (90 minutes)
- Work with Big Data in R
Instructor: Nathan Stephens (90 minutes)
- Reproducible Reports with Big Data
Instructor: Yihui Xie (90 minutes)
- Interactive Shiny Applications built on Big Data
Instructor: Garrett Grolemund (90 minutes)
If you plan to stay for the full Strata Conference+Hadoop World be sure to look us up at booth 633 during the Expo Hall hours. We’ll have the latest books from RStudio authors and “shiny” t-shirts to win. Share with us what you’re doing with RStudio and get your product and company questions answered by RStudio employees.
See you in New York City! (http://strataconf.com/big-data-conference-ny-2015)
Five months ago we launched shinyapps.io. Since then, more than 25,000 accounts have been created and countless Shiny applications have been deployed. It’s incredibly exciting to see!
It’s also given us lots of data and feedback on how we can make shinyapps.io better. Today, we’re happy to tell you about some changes to our subscription Plans that we hope will make shinyapps.io an even better experience for Shiny developers and their application users.
New Starter Plan – More active hours and apps, less money
For many people the price difference between the Free and the Basic plan was too much. We heard you. Effective today there is a new Starter Plan for only $9 per month or $100 per year. The Starter Plan has the same features as the Free plan but allows 100 active hours per month and up to 25 applications. It’s perfect for the active Shiny developer on a budget!
More Active Hours for Basic, Standard, and Professional Plans
Once you’re up and running with Shiny we want to make sure even the most prolific developers and popular applications have the active hours they need. Today we’re doubling the number of active hours per month for the Basic (now 500), Standard (now 2,000), and Professional (now 10,000) plans. In practice, very few accounts exceeded the old limits for these plans but now you can be sure your needs are covered.
New Performance Boost features for the Basic Plan
In addition to supporting multiple R worker processes per application, which keeps your application responsive as more people use it, we’ve added more memory (up to 8GB) on Basic plans and above. While the data shows that most applications work fine without these enhancements, if you expect many users at the same time or your application is memory or CPU intensive, the Basic Plan has the performance boost you need. The Basic plan also allows unlimited applications and 500 active hours per month.
The articles section on shiny.rstudio.com has lots of great advice for Shiny developers.
A recent article by Dean Attali demonstrates how to save data from a Shiny app to persistent storage structures, like local files, servers, databases, and more. When you do this, your data remains after the app has closed, which opens new doors for data collection and analysis.
Read Dean’s article and more at shiny.rstudio.com/articles
We’ve added two new tools that make it even easier to learn Shiny.
The How to Start with Shiny training video provides a new way to teach yourself Shiny. The video covers everything you need to know to build your own Shiny apps. You’ll learn:
- The architecture of a Shiny app
- A template for making apps quickly
- The basics of building Shiny apps
- How to add sliders, drop down menus, buttons, and more to your apps
- How to share Shiny apps
- How to control reactions in your apps to
- update displays
- trigger code
- reduce computation
- delay reactions
- How to add design elements to your apps
- How to customize the layout of an app
- How to style your apps with CSS
Altogether, the video contains two hours and 25 minutes of material organized around a navigable table of contents.
Best of all, the video tutorial is completely free. The video is the result of our recent How to Start Shiny webinar series. Thank you to everyone who attended and made the series a success!
Watch the new video tutorial here.
New cheat sheet
The new Shiny cheat sheet provides an up-to-date reference to the most important Shiny functions.
The cheat sheet replaces the previous cheat sheet, adding new sections on single-file apps, reactivity, CSS and more. The new sheet also gave us a chance to apply some of the things we’ve learned about making cheat sheets since the original Shiny cheat sheet came out.
Get the new Shiny cheat sheet here.
Shiny 0.12 has been released to CRAN!
Compared to version 0.11.1, the major changes are:
- Interactive plots with base graphics and ggplot2
- Switch from RJSONIO to jsonlite
For a full list of changes and bugfixes in this version, see the NEWS file.
To install the new version of Shiny, run:
htmlwidgets is not required, but shiny 0.12 will not work with older versions of htmlwidgets, so it’s a good idea to install a fresh copy along with Shiny.
Interactive plots with base graphics and ggplot2
The major new feature in this version of Shiny is the ability to create interactive plots using R’s base graphics or ggplot2. Adding interactivity is easy: it just requires using one option in
plotOutput(), and then the information about mouse events will be available via the
You can use mouse events to read mouse coordinates, select or deselect points, and implement zooming. Here are some example applications:
- Basic interactions
- Advanced interactions: This demonstrates many advanced features of interactive plots.
- Excluding points (as depicted in the screen capture above)
Switch from RJSONIO to jsonlite
In previous versions of Shiny, the data was serialized to/from JSON using the RJSONIO package. However, as of 0.12.0, Shiny switched from RJSONIO to jsonlite. The reasons for this are that jsonlite has better-defined conversion behavior, and it has better performance because much of it is now implemented in C.
For the vast majority of users, this will have no impact on existing Shiny apps.
The htmlwidgets package has also switched to jsonlite, and any Shiny apps that use htmlwidgets also require an upgrade to that package.
A note about Data Tables
The version we just released to CRAN is actually 0.12.1; the previous version, 0.12.0, was released three weeks ago and deprecated Shiny’s
renderDataTable functions and instructed you to migrate to the nascent DT package instead. (We’ll talk more about DT in a future blog post.)
User feedback has indicated this transition was too sudden and abrupt, so we’ve undeprecated these functions in 0.12.1. We’ll continue to support these functions until DT has had more time to mature.
- Automatically plots xts time-series objects (or objects convertible to xts).
- Rich interactive features including zoom/pan and series/point highlighting.
- Highly configurable axis and series display (including optional 2nd Y-axis).
- Display upper/lower bars (e.g. prediction intervals) around series.
- Various graph overlays including shaded regions, event lines, and annotations.
- Use at the R console just like conventional R plots (via RStudio Viewer).
- Embeddable within R Markdown documents and Shiny web applications.
The dygraphs package is available on CRAN now and can be installed with:
Here are some examples of interactive time series visualizations you can create with only a line or two of R code (the screenshots are static, click them to see the interactive version).
Panning and Zooming
This code adds a range selector that’s can be used to pan and zoom around the series data:
dygraph(nhtemp, main = "New Haven Temperatures") %>% dyRangeSelector()
When you hover over the time-series the values of all points at the location of the mouse are shown in the legend:
lungDeaths <- cbind(ldeaths, mdeaths, fdeaths) dygraph(lungDeaths, main = "Deaths from Lung Disease (UK)") %>% dyOptions(colors = RColorBrewer::brewer.pal(3, "Set2"))
Shading and Annotations
There are a wide variety of tools available to annotate time series. Here we demonstrate creating shaded regions:
dygraph(nhtemp, main="New Haven Temperatures") %>% dySeries(label="Temp (F)", color="black") %>% dyShading(from="1920-1-1", to="1930-1-1", color="#FFE6E6") %>% dyShading(from="1940-1-1", to="1950-1-1", color="#CCEBD6")
You can find additional examples and documentation on the dygraphs for R website.
One of the reasons we are excited about dygraphs is that it takes a mature and feature rich visualization library formerly only accessible to web developers and makes it available to all R users.
Action buttons can be tricky to use in Shiny because they work differently than other widgets. Widgets like sliders and select boxes maintain a value that is easy to use in your code. But the value of an action button is arbitrary. What should you do with it? Did you know that you should almost always call the value of an action button from
The newest article at the Shiny Development Center explains how action buttons work, and it provides five useful patterns for working with action buttons. These patterns also work well with action links.
Read the article here.
RStudio is excited to announce the general availability (GA) of shinyapps.io.
Shinyapps.io is an easy to use, secure, and scalable hosted service already being used by thousands of professionals and students to deploy Shiny applications on the web. Effective today, shinyapps.io has completed beta testing and is generally available as a commercial service for anyone.
As regular readers of our blog know, Shiny is a popular free and open source R package from RStudio that simplifies the creation of interactive web applications, dashboards, and reports. Until today, Shiny Server and Shiny Server Pro were the most popular ways to share shiny apps. Now, there is a commercially supported alternative for individuals and groups who don’t have the time or resources to install and manage their own servers.
We want to thank the nearly 8,000 people who created at least one shiny app and deployed it on shinyapps.io during its extensive alpha and beta testing phases! The service was improved for everyone because of your willingness to give us feedback and bear with us as we continuously added to its capabilities.
For R users developing shiny applications that haven’t yet created a shinyapps.io account, we hope you’ll give it a try soon! We did our best to keep the pricing simple and predictable with Free, Basic, Standard, and Professional plans. Each paid plan has features and functionality that we think will appeal to different users and can be purchased with a credit card by month or year. You can learn more about shinyapps.io pricing plans and product features on our website.
We hope to see your shiny app on shinyapps.io soon!