Ryszard Szymański

Senior R Developer

Warsaw, Poland

Ryszard is a Senior R Developer at Appsilon, where he builds Shiny applications for pharmaceutical and life sciences clients. His work focuses on bridging the gap between rigorous software engineering practices and the statistical computing needs of

Expertise:

Shiny

renv

Bioconductor

R

Unit Testing

Credentials:

MSc in Computer Science
Author of 10+ technical articles on the Appsilon blog
Contributor to open-source R packages
Specializes in production Shiny apps for pharma

Recent Blogpost

How to Use {renv} and Bioconductor for Reproducible Data Analysis

Practical tips for combining {renv} and Bioconductor to manage dependencies and ensure reliable analysis outcomes.

Ryszard Szymański

December 18, 2024

Object Oriented Programming in R (Part 4): Reference Classes & R6 Classes

Get to know encapsulated OOP in R: Let's explore Reference Classes and R6, their features, and how they stack up against functional OOP.

Ryszard Szymański

Object Oriented Programming in R (Part 3): A Practical Guide to the S4 System

Explore S4 OOP in R with our guide to classes, methods, and advanced features for robust programming.

Ryszard Szymański

Object Oriented Programming in R Part 2: S3 Simplified

Learn about the fundamentals and applications of S3 object-oriented systems in R, including class creation, inheritance, and best practices.

Ryszard Szymański

February 2, 2024

Get More from Shiny for Python with Custom Components

Explore creating custom components in Shiny for Python to enhance interactive data visualization with libraries like Drawflow.

Ryszard Szymański

January 11, 2024

Object-Oriented Programming in R (Part 1): An Introduction

Are you curious about how Object-Oriented Programming (OOP) in R? Discover its advantages and why it's a game-changer for developers.

Ryszard Szymański

January 10, 2024

Maximizing Efficiency: A Guide to Benchmarking Memory Usage in Shiny Apps

Maximize your Shiny app's performance with our guide on memory benchmarking and optimization.

Ryszard Szymański

November 30, 2023

Infinite Scrolling in R Shiny

Display chunks of content to Shiny users in a performant manner with infinite scroll.

Ryszard Szymański

November 25, 2022

CRAN and the Isoband Incident - Is Your Project at Risk and How to Fix It

The isoband incident reveals the risk associated with using public infrastructure. Learn how to protect your projects.

Ryszard Szymański

October 12, 2022

How to Use TailwindCSS in Shiny

Build Shiny apps using TailwindCSS, a utility-first CSS framework.

Ryszard Szymański

Pharma Brief Extended

shiny for python

clinical trials

data visualization

functional programming

deploy shiny apps

image classification

project management

excel alternatives

satellite imagery

shiny dashboard

video tutorials

semantic dashboard

shiny dashboards

object-oriented programming

natural language processing

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