R bloggers

How to Select Row with Max Value in Specific Column in R: A Complete Guide

December 9, 2024 | Steven P. Sanderson II, MPH

Introduction When working with data frames in R, finding rows containing maximum values is a common task in data analysis and manipulation. This comprehensive guide explores different methods to select rows with maximum values in specific colum...

openwashdata hackathon

December 9, 2024 | Lars Schöbitz

📊 What would you create if given the challenge to turn raw data into compelling stories? Last week, openwashdata at Global Health Engineering hosted an exciting hackathon, challenging data enthusiasts to dive into one of our 30+ datasets and cra... [Read more...]

Analyzing Driver License Suspensions with R

December 9, 2024 | Brian Mikelbank

Summary: In this guest post, Brian A Mikelbank, Associate Professor of Urban Studies at Cleveland State University, shares how he used R to explore the likely causes of license suspensions in Ohio, USA. Packages Required: Data: Background I’m a quantitative urban geographer, on the faculty at Cleveland State University, ...

Parallel and Asynchronous Programming in Shiny with future, promise, future_promise, and ExtendedTask

December 9, 2024 | Colin Fay

You can read the original post in its original format on Rtask website by ThinkR here: Parallel and Asynchronous Programming in Shiny with future, promise, future_promise, and ExtendedTask Illustration via ChatGPT. There are three hard things in computer science. One is making ChatGPT write “Invalidation” correctly on an image. ...

Turn a GitHub repo into a single text file for LLM-friendly input (repost)

December 9, 2024 | Stephen Turner

Reposted from the original at https://blog.stephenturner.us/p/github-repo-to-text-for-llm-input.--- If you use ChatGPT, Claude, or even some local model through Ollama or HuggingFace Assistants, you’ll know that the chat interf... [Read more...]

How to Find the Column with the Max Value for Each Row in R

December 8, 2024 | Steven P. Sanderson II, MPH

Are you working with a data frame in R where you need to determine which column contains the maximum value for each row? This is a common task when analyzing data, especially when dealing with multiple variables or measurements across different ...

7 New Books added to Big Book of R [7/12/2024]

December 7, 2024 | Oscar

I’m very happy to introduce 7 additions to the Big Book of R collection which now stands at almost 450 free, open-source R programming books. A special thanks to Gary and Lucca Scrucca for their submissions. In case you missed it, the Big Book of R bot is live on … The ... [Read more...]

Advent of Code with data.table: Week One

December 6, 2024 | Kelly Bodwin

Happy December, R friends! One of my favorite traditions in the R community is the Advent of Code, a series of puzzles released at midnight EST from December 1st through 25th, to be solved through programming in the language of your choosing. I ...

A Beginner’s Guide to Package Management in Linux

December 5, 2024 | Steven P. Sanderson II, MPH

Introduction As a beginner Linux user, understanding package management is crucial for installing, updating, and removing software on your system. In this comprehensive guide, we’ll explore the fundamentals of package management in Linux, cover...

Bachet’s Four Weights Problem

December 5, 2024 | Nina Zumel

Here’s another puzzle from Henry Dudeney’s article “The World’s Best Puzzles,” The Strand Magazine, December 1908. According to Dudeney, this puzzle is originally from Problèmes plaisans et délectables qui se font par les nombres (Pleasant and d...

Support geocompx and the development of open-source geocomputation resources!

December 5, 2024 | Jakub Nowosad, Robin Lovelace

As 2024 comes to an end, we have things to celebrate in the geocompx community, including the completion of two books: the second edition of Geocomputation with R and the first edition of Geocomputation with Python. Both books are open-source, ca...

A Book Dash for the R Development Guide

December 5, 2024 | Saranjeet Kaur Bhogal

This last month of 2024 started with a lot of updates to the R Development (Dev) Guide. It has been almost 4 years since the discussions about having such a guide started during useR! 2020. The guide has come a long way since then, and there som...

{SLmetrics}: Machine Learning performance evaluation on steroids

December 5, 2024 | Serkan Korkmaz

Introduction {SLmetrics} is a low-level R package designed for efficient performance evaluation in supervised AI/ML tasks. By leveraging {Rcpp} and {RcppEigen}, it ensures fast execution and memory efficiency, making it ideal for handling large-scale datasets. Built on the robust S3 class system, {SLmetrics} integrates seamlessly with stable R packages, ... [Read more...]

Quantitative Analysis: NVIDIA

December 5, 2024 | Selcuk Disci

Although the investors do not like the pace of revenue growth, in terms of QoQ, NVIDIA’s revenue increased for the first time in five quarters. Source code: [Read more...]

How to Find Columns with All Missing Values in Base R

December 4, 2024 | Steven P. Sanderson II, MPH

Introduction When working with real-world datasets in R, it’s common to encounter missing values, often represented as NA. These missing values can impact the quality and reliability of your analyses. One important step in data preprocessing is...

Predicting Water Quality in New York Harbor

December 4, 2024 | Art Steinmetz

Motivation This is an exercise in using machine learning to predict the level of harmful bacteria in New York Harbor based on environmental factors like tidal conditions, rainfall and location. Among the reasons this is useful is understanding how to rebuild a marine life ecosystem in the harbor, where oysters ...

Positron vs RStudio – is it time to switch?

December 4, 2024 | The Jumping Rivers Blog

Positron is the new beta Data Science IDE from Posit. Though Posit have stressed that maintenance and development of RStudio will continue, I want to use this blog to explore if Positron is worth the switch. I’m coming at this from the R developm...

What’s the Difference Between Charts, Visualizations, and Plots?

December 4, 2024 | Matt Steele

Within Displayr, there are different ways of visualizing your data. Before jumping into the detail, we acknowledge that ideally there would be only one system. As...

Mastering For Loops in C: A Comprehensive Beginner’s Guide with Examples

December 3, 2024 | Steven P. Sanderson II, MPH

Introduction Loops are a fundamental concept in programming that allow you to repeat a block of code multiple times. In C, there are three types of loops: for , while, and do-while. In this article, we’ll focus on the for loop and explore how i...

Nuevo canal de Youtube: Programación en R

December 3, 2024 | Teoten

Nuevo canal sobre programación en R en Español: https://www.youtube.com/@teoten.programando Teoten Programando es un canal donde aprender a programar es accesible, relajado y libre de complicaciones. Aquí encontrarás tutoriales claros y práctic... [Read more...]

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