Register for Appsilon & RStudio’s Community X-Session: Enterprise Shiny Apps from Concept to Production Shiny Video Game Floats To The Top! Chumming The Water For Good Ideas Focus Your Efforts Stay Organized Build A POC Code Quality User Tests Fin Shiny Video Game Floats To The Top! Shark Attack is ...

Clean R Code Is Critical Over many years of experience delivering successful projects, I’ve found one common element in each implementation. A clean, readable, and concise codebase is the key to effective collaboration and provides the highest quality value to the client. Code review is a crucial part of ...

Everybody loves a good dashboard. They are the best way to visualize data and provide insights. As the requirements get longer and time frames get shorter, dashboards can quickly become a nightmare to maintain. That’s where refactoring comes into play. Are you developing dashboards in Python and Dash? Here’...

TL;DR Nobody wants to use a slow dashboard. At Appsilon, we frequently hear this complaint from clients: “We’ve built a fantastic Shiny dashboard, but it’s incredibly slow and no one wants to use it.” No matter how complicated they are, Shiny dashboards do not have to be ...

This talk was presented virtually at eRum 2020 and useR 2020 by Appsilon engineer Marcin Dubel. Here is a direct link to the video. Be Proud of Your Code! In this talk you’ll learn the tools and best practices for making clean, reproducible R code in a working environment ready to ...

Intro + hackathon description   Have you ever participated in a hackathon? A month ago my answer was still no (despite the fact that I’ve been working in the R Shiny/Data Science space for 5 years). Now I have checked it off my list. And my team won, so I’m 1 ...

TL;DR Describes the best practices for setting automated test architecture for Shiny apps. Automate and test early and often with unit tests, user interface tests, and performance tests. Best Practices for Testing Your Shiny App Even your best apps will break down at some point during development or during ...

TL;DR Why use object-oriented programming in Shiny applications? It’ll help organizize organize the code in your application!   Organize Your Shiny Code with Object-Oriented Programming Classes are used widely in all R programming — usually the S3 ones. Even if you’ve never heard of them, as an R user ...

TL;DR Two methods for keeping your Shiny app organized while avoiding hardcoding. Softcoding Constants in a Shiny App They can be found everywhere. Text on buttons, urls to be linked, some numeric thresholds, a font to be used on ggplot, technical IDs to business names mapping, column names from ...

I’m after an exhausting yet exciting weekend with the WhyR? conference. That was the third edition, this year held in Warsaw, and it is nice to see how it grows each year. The Appsilon Data Science team really appreciates the initiative and the professionalism of organisation, thus we decided ...

TL;DR Three methods for using javascript code in Shiny applications to build faster apps, avoid unnecessary re-rendering, and add components beyond Shiny’s limits. Part 2 of a five part series on super solutions for Shiny architecture.  Why Javascript + Shiny?  Many Shiny creators had a data science background, and not ...

TL;DR Learn how to use the session argument as a global list for passing parameters between the modules in advanced Shiny apps to simplify the objects’ flow in code. Session can help you organize the app content and simplify the objects flow logic. It is faster than managing all ...

tl; dr Transferring your Excel sheet to a Shiny app can be the easiest way to create an enterprise ready dashboard. In this post, I  present 6 Shiny alternatives for the table-like data that Excel users love. Intro  Excel has its limitations regarding advanced statistics and calculations, quality and version control, ...