R-bloggers

How to Write Cucumber Specifications the Right Way: From App Description to Scenarios

July 29, 2025 | jakub::sobolewski

Adding Cucumber specifications to an existing application? Learn how to write Gherkin scenarios that focus on user behavior, not implementation details. Use AI to iterate faster. [Read more...]

Refactoring Cucumber and Playwright Acceptance Tests with GitHub Copilot

July 28, 2025 | jakub::sobolewski

Given a set of existing Cucumber and Playwright acceptance tests, I asked Copilot to refactor them according to best practices for step organization and anti-patterns. [Read more...]

Efficient R – How to write faster code workshop

July 28, 2025 | Dariia Mykhailyshyna

Join our workshop on Efficient R – How to write faster code, which is a part of our workshops for Ukraine series! Here’s some more info: Title: Efficient R – How to write faster code Date: Thursday, August 28th, 18:00 – 20:00 CEST (Rome, Berlin, Paris timezone) Speaker: Selina Baldauf, Selina is a theoretical ... [Read more...]

Can Juliet manage without Romeo? How much she should spend, save, and invest to achieve that?

July 26, 2025 | Kamil Wais

Meet Juliet Juliet just turned 20 and is ready to start her adult life. She’s landed a stable, well-paid job and her new journey begins. This time, life unfolds without Romeo. Think she can’t handle it? You might be surprised. Juliet feels anxious about her future. Each month she ...

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Part IV – Using R in Excel – Calling Python

July 24, 2025 | Adam Gladstone

Introduction In the last post in this series I am going to look at calling Python from R. Even though Excel now provides a means of calling Python scripts directly, using the =PY() formula in a worksheet, there are still occasions when it is beneficial...

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Part III – Using R in Excel – Forecasting

July 24, 2025 | Adam Gladstone

Introduction We have already seen how to obtain descriptive statistics in Part I and how to use lm() in Part II. In this part (Part III) of the series we will look at using R in Excel to perform forecasting and time series analysis. In the previous tw...

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Part II – Using R in Excel – Linear Regression

July 24, 2025 | Adam Gladstone

Introduction In the first part of this series, I looked at using R in Excel to obtain descriptive statistics. In this second part of the series I am going to look at using R in Excel to perform linear regression, specifically using the lm() function. l...

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Part I – Using R in Excel – Descriptive Statistics

July 24, 2025 | Adam Gladstone

Introduction The purpose of this series of posts is to demonstrate some use-cases for R in Excel using the ExcelRAddIn component (disclaimer: I am the developer of this add-in: ExcelRAddIn). The fundamental rationale for the add-in is that it allows ac...

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Shiny in Production 2025: R Dev Day

July 24, 2025 | The Jumping Rivers Blog

Do you use R? Would you like to play a part in sustaining it? Find out about the R Dev Day that is returning as a satellite event to Shiny in Production 2025. This post will answer questions you may have, such as: “Do I need to be an R guru...

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3 Reasons Blocking You From Doing Automated Testing

July 22, 2025 | jakub::sobolewski

Get them out of your way to start testing your code effectively. [Read more...]

Let’s talk about NA-s!

July 22, 2025 | R on Biofunctor

ARTHUR: Well, what is it you want? HEAD KNIGHT: We want… a paste function that can deal with NA-s! A language for statistical computing clearly needs to be able to deal with missing values, and R has various ways to do so. I will briefly go th...

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Tidyverse with GitHub Copilot for Healthcare Analytics – Part 2

July 22, 2025 | Vidisha Vachharajani

1. Introduction and recap Healthcare analytics offers significant benefits to a wide range of stakeholders, including health administrators, organizations, and most importantly, doctors, nurses, and healthcare workers. In the first part of this...

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rOpenSci News Digest, July 2025

July 22, 2025 | rOpenSci - open tools for open science

Dear rOpenSci friends, it’s time for our monthly news roundup! You can read this post on our blog. Now let’s dive into the activity at and around rOpenSci! rOpenSci HQ Open Science with a Latin American Identity: Meet the New Cohort of... [Read more...]

Trend-Anomaly Analysis of U.S. Federal Budget Balance

July 22, 2025 | Selcuk Disci

According to the Trend-Anomaly chart, after the liberation day tariffs, the U.S. Federal Budget Balance has recovered from the extremely high level deficit. Source code:

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Numbers of the Beast: Sasquatch Distribution Modelling

July 21, 2025 | moth

The third OII Halloween Lecture sinks bodily into the tortured mass of data concerning cryptozoological sightings in North America. Drawing on over a century of shadow-haunted sightings documenting the curiously repellant presence of the North America Sasquatch, or Bigfoot, we aim to identify the factors associated with its presence, delineate ... [Read more...]

Testing your Plumber APIs from R

July 19, 2025 | jakub::sobolewski

Learn how to effectively test your Plumber APIs in R using a two-layer testing strategy that separates business logic from API contracts. [Read more...]

Tagging Bioconductor packages with EDAM

July 17, 2025 | Vince Carey

Introduction The EDAM ontology is used to provide conceptual organization of resources in major initiatives like ELIXIR bio.tools and Galaxy. Bioconductor’s methods and data are tagged using an ad hoc terminologic hierarchy called biocViews. In...

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Organizing R development using srcpkgs

July 17, 2025 | Karl Forner

Overview This is an introduction on organizing R projects using source packages (powered by my R package srcpkgs). It is based on notes for a talk I have on 2024-05-27 for the Swiss Institute of Bioinformatics Vital-IT group Analysts meeting. T... [Read more...]

Testing Legacy Shiny Apps: Start with Behavior, Not Code

July 15, 2025 | jakub::sobolewski

Adding acceptance tests first makes refactoring safer. [Read more...]

R Package Quality: Maintainer Criteria

July 15, 2025 | The Jumping Rivers Blog

This is final part of a five part series of related posts on validating R packages. Other posts in the series are: Validation Guidelines Package Popularity Package Documentation Code Quality Maintenance (this post) At last we come to the final ...

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