The Jumping Rivers Dashboard Gallery
Published: April 15, 2025
At Jumping Rivers we love data dashboards and are delighted to announce the release of a gallery to showcase our application-development skills.
Tag: shiny
Shiny in Production 2024 Videos
Published: April 8, 2025
All our videos from Shiny in Production 2024, collected together in one place.
Sparklines in Reactable Tables in Shiny Apps
Published: March 27, 2025
In this blog I will demonstrate how to use sparkline reactable tables in a Shiny app. Thankfully {reactable} has some helpful functions that make this super easy!
Shiny in Production 2025: Abstracts Deadline Extension
Published: March 11, 2025
Due to popular demand we are extending the abstract deadline for Shiny in Production 2025, to be held on 8th-9th October 2025 in Newcastle upon Tyne, UK. Read on for more details on how to submit your work.
Shiny in Production 2025: Call for Abstracts
Published: February 17, 2025
We are excited to announce the Call for Abstracts for Shiny in Production 2025, to be held on 8th-9th October 2025 in Newcastle upon Tyne, UK. Read on for more details on how to submit your work.
Sparkline Package
Published: February 13, 2025
This is part one of a multiple part blog series, in which I will be demonstrating how to create inline visualisations using the {sparkline} R package.
Porting a Shiny App to Observable Framework: Part 2
Published: January 30, 2025
This post, Part 2 in a series of two, looks at styling and deploying the Observable Framework app we built in part 1.
Shiny in Production 2025
Published: January 23, 2025
The fourth instalment of Shiny in Production is back this October, hosted at the Catalyst in Newcastle upon Tyne, with super early bird tickets deadline for Shiny in Production ends on the 31st of January.
Porting a Shiny App to Observable Framework: Part 1
Published: January 16, 2025
This post, Part 1 in a series of two, looks at porting the functional code of a Shiny app - written in R - into JavaScript code to be used in an Observable Framework application.
Creating an animated Christmas tree in R
Published: December 24, 2024
In this short Christmassy blog we will show you how to use {ggplot2}, {sf} and {gganimate} to create a festive animation of a sparkling Christmas tree.
Music in R
Published: December 19, 2024
Here, we’ll talk about music in R, what packages are available, how to represent musical notation, and what people are actually doing with music data in R.
R Dev Day @ SIP 2024
Published: November 14, 2024
This year Shiny in Production hosted an "R Dev Day" split over the two days before the pre-conference workshops. R Dev Days are a new initiative of the R Contribution Working Group, providing an opportunity for R developers to get involved in contributing to the R Project. R Dev Day will be back at SIP 2025, so read on to find out what participants got up to and consider coming along next year!
Highlights from Shiny in Production (2024)
Published: October 17, 2024
The 9th and 10th of October saw the third Shiny in Production conference hosted by Jumping Rivers. Here we share the highlights from our fabulous talks and workshops.
Shiny in Production 2024: Workshops
Published: July 4, 2024
The details of all of our workshops for Shiny in Production are now live on the conference website. Read on for full details all in one place.
A timeline of R's first 30 years
Published: June 27, 2024
R has come a long way since it's initial public release in August 1993. Explore some highlights of the last thirty years in an interactive timeline.
Shiny in Production 2024: Call for Abstracts
Published: May 30, 2024
We are excited to announce the Call for Abstracts for Shiny in Production 2024, to be held on 9th-10th October 2024 in Newcastle upon Tyne, UK. Read on for more details on how to submit your work.
Security Headers for Shiny Applications
Published: January 11, 2024
Shiny applications are easy to set up. However, as they often contain sensitive information, care should be taken. This post discusses standard server headers that can be set to harden your application.
Effect of Shiny Widgets with Google Lighthouse
Published: December 14, 2023
Inspired by Colin Fay's Shiny in Production 2022 talk, "Destroy All Widgets", this blog post series explores how to use Google Lighthouse to measure the performance of your Shiny apps. The last blog in the Lighthouse series uses Google Lighthouse to see the differences each component has on the app times.
Analysing Shiny App start-up Times with Google Lighthouse
Published: December 7, 2023
Inspired by Colin Fay's Shiny in Production 2022 talk, "Destroy All Widgets", this blog post series explores how to use Google Lighthouse to measure the performance of your Shiny apps. In this second post of the series, we show how to use lighthouse to analyse your app's start-up times.
Using Google Lighthouse for Web Pages
Published: November 30, 2023
Inspired by Colin Fay's Shiny in Production 2022 talk, "Destroy All Widgets", this blog post series explores how to use Google Lighthouse to measure the performance of your Shiny apps. In this first post of the series, we show how to run and read Google Lighthouse reports.
Highlights from Shiny in Production (2023)
Published: October 19, 2023
On October 12-13 2023, Jumping Rivers hosted the Shiny in Production conference, delving into all things Shiny! Read on for a rundown of the event highlights.
Shiny in Production: Sponsors
Published: September 28, 2023
There's only two weeks left to go until Shiny in Production 2023! The events team are hard at work getting things ready for the day, and we wanted to take this opportunity to say a huge thank you to our event sponsors!
Changing the world with Data: An outreach event
Published: July 6, 2023
Earlier this year, two data scientists from Jumping Rivers ran an outreach activity for 14-19 year olds across the UK, in collaboration with the youth charity Speakers for Schools.
Fullscreen Ahead for Shiny Applications
Published: June 8, 2023
Browsers have been implementing variations on a JavaScript fullscreen API for over a decade. Unfortunately, for much of that time the APIs varied across browsers. This made actually using it in production somewhat cumbersome. In this blog, we show you how to put parts of your Shiny application into fullscreen with only a few lines of JavaScript.
Create a clickable word cloud in Shiny
Published: April 27, 2023
Learn how to create a clickable word cloud that you can use as an input to e.g. filter observations displayed in a table, using wordcloud2 in a Shiny app.
Customising {shinydashboard}
Published: March 16, 2023
Sometimes you want to go beyond the default {shinydashboard} theme. This blog will take you through 3 options—built-in colours, the {fresh} package, and CSS.
WHO/Europe: Work smarter; not harder.
Published: February 16, 2023
By automating a few tasks using continuous integration and continuous delivery pipelines, developers at Jumping Rivers spent less time on the trivial and repetitive tasks, and more time making improvements where it really mattered.
Improving the responsiveness of Shiny applications
Published: January 26, 2023
This post covers the "why?" and "how?" of making Shiny applications feel like they respond instantaneously to users' interactions.
UI-driven testing for Shiny: Part 3
Published: January 19, 2023
It pays to extract out some helper functions and / or classes from your test cases. By doing so, your tests will look simpler, the behaviour that you are testing will be more explicit, and you'll have less code to maintain.
UI-driven testing for Shiny: Part 2
Published: January 12, 2023
Here, we will write a simple shiny app (as an R package) and show how to generate tests for this app using {shinytest2}.
UI-driven testing for Shiny: Part 1
Published: January 5, 2023
Automated testing is an essential part of any production-quality software project. Much of the focus in the R world is on testing the individual components of a project, but for those working with {shiny} there are great tools that can test your application as if a user was interacting with it. In this blog series, we focus on {shinytest2}.
Shiny for Python dashboard using Twitter data
Published: November 3, 2022
The arrival of Shiny for Python was announced at the RStudio Conference a few weeks ago. In this tutorial I will take you through how I created a simple Shiny for Python dashboard, with no experience using the framework in R.
Automating Dockerfile creation for Shiny apps
Published: October 20, 2022
Deploying shiny applications can be frustrating, making sure your production environment matches your local environment where you can see your application running. In this blog post we explore how we might start writing code to automate the process of creating Dockerfiles for producing images that make our local, running, shiny application able to be deployed in a container.
Training course update - Autumn 2022
Published: October 18, 2022
Here at Jumping Rivers we like to keep our courses up to date so we can bring you training on the latest tools and technologies. To this end, we have recently added two new courses to our listing!
Highlights from Shiny in Production (2022)
Published: October 13, 2022
On October 6-7 2022, Jumping Rivers hosted the Shiny in Production conference! The conference delved into the world of {shiny} and other web based R packages.
Hello Shiny Python
Published: August 23, 2022
RStudio conf 2022 had some exciting reveals. Certainly one of the most interesting releases was that of shiny, the excellent web application development framework known in the R community, getting a Python release. Here we will take a first look at creating a simple application.
Recreating the Shiny App tutorial: Part 3
Published: July 21, 2022
RStudio Connect supports a spectrum of data products, static or dynamic, developed in R and Python: Dashboards, applications, APIs, reports, and much more - we can also host ReactJS applications! This series will focus on recreating a Shiny App tutorial using ReactJS. In part 3 will demonstrate how to host an application on RStudio Connect.
Recreating the Shiny App tutorial: Part 2
Published: July 14, 2022
RStudio Connect supports a spectrum of data products, static or dynamic, developed in R and Python: Dashboards, applications, APIs, reports, and much more - we can also host ReactJS applications! This series will focus on recreating a Shiny App tutorial using ReactJS. In part 2, we will walk through an example.
Recreating the Shiny App tutorial: Part 1
Published: July 7, 2022
RStudio Connect supports a spectrum of data products, static or dynamic, developed in R and Python: Dashboards, applications, APIs, reports, and much more - we can also host ReactJS applications! This series will focus on recreating a Shiny App tutorial using ReactJS. In part 1, we introduce the required concepts and technologies.
WHO/Europe: Offload Shiny's Workload
Published: June 21, 2022
The great strength of Shiny is that it simplifies the production of data-focused web applications, making it relatively easy to present data to users / clients in an interactive way. However, data can be big and data-processing can be complex, time-consuming and memory-hungry. In this post we demonstrate how we tackled this issue in a recent project.
Shiny in Production Update
Published: June 14, 2022
The organisation for Shiny in Production is well under way - our list of speakers is now up on the conference website, and registration is open, with Early Bird tickets available until July 31st! Read on for more details.
Accessibility in R applications: {shiny}
Published: May 19, 2022
Web content accessibility is an important topic to consider when building web based applications. {shiny} is an excellent tool that allows data practitioners a relatively simple, quick approach to providing an intuitive user interface to their R code via a web application. Here we explore accessibility in the context of a {shiny} application.
Shiny in Production (2022)
Published: May 13, 2022
This October, Jumping Rivers will be holding our Shiny in Production conference! Hosted in the centre of Newcastle Upon Tyne, UK, this conference will delve into the world of {shiny} and other web based R packages.
The importance of web accessibility standards
Published: May 12, 2022
The web is an increasingly critical resource for many aspects of life. Striving to make your content accessible is essential to provide equal opportunity and access for all.
Job: Shiny Developer
Published: March 12, 2021
We are expanding the Jumping Rivers team. If you know {shiny} then this could be the perfect role for you!
The (Delayed) 2019
Published: October 13, 2020
Don’t we all miss 2019 (blame Covid for the long delay in this post). The days of going to work and seeing your work colleagues face to face - and for some of you, attending one of our on-site training courses! 2019 was a great year for us.
Recreating a Shiny App with Flask
Published: April 21, 2020
So RStudio Connect has embraced Python and now runs Flask applications! At Jumping Rivers we make a lot of use of R, shiny, and Python for creating visual tools for our clients. Shiny has a lot of nice features, in particular it is very fast for prototyping web applications.
Catch us at these conferences!
Published: September 9, 2019
At Jumping Rivers we’re always to want to branch into the data science community, and so this year we’re going to quite a few conferences in the autumn. You can catch us at: GSS (Government Statistical Service) Conference - Edinburgh.
We're RStudio Trainers!
Published: August 16, 2019
Big news. RStudio recently started certifying trainers in three areas: the tidyverse, Shiny and teaching. To be certified to teach a topic you have to pass the exam for that topic and the teaching exam. Even bigger news. Four of your lovely Jumping Rivers trainers are now certified to teach at least one topic!
Voice Control your Shiny Apps
Published: October 15, 2018
I love R and I love Shiny. One of the things I really like about shiny is the ease with which you can incorporate other Javascript based tools and libraries. By my own admission, my JavaScript skills are definitely lacking but there are so many cool libraries out there which can really make visualisation and interaction with displayed content come alive.
eRum Competition Winners
Published: April 20, 2018
The results of the eRum competition are in! Before we announce the winners we would like to thank everyone who entered. It has been a pleasure to look at all of the ideas on show. The Main Competition. The winner of the main competition is Lukasz Janiszewski.
The Water Hub Hackathon; We won!
Published: April 20, 2018
Well well well, we’ve only gone and won The Water Hub hackathon! Well, joint winners but the main word is WINNER. First of all we want to say thank you to all the guys at the Water Hub and the Sunderland Software Centre for organising and inviting.
