R-bloggers

So I will fess up, I was one of the 34% of people who chose the first, incorrect answer on this quiz on Mastodon: Original Toot, and explanatory responses, is available here. My reasoning - and my only excuse is I didn’t think it through much - was ...

Imagine your Shiny app – users are interacting seamlessly, data is processing swiftly, and visualizations update effortlessly. This dream becomes reality with a focus on performance optimization. We created a guide on profiling R/Shiny applications. Check it out to learn the right tweaks to speed up your application.  Here’s ...

Introduction Hey there, budding C programmer! Ready to embark on your coding journey? Let’s start with the classic “Hello World” program using Visual Studio Code. Don’t worry if you’re new to this – we’ll walk through it step by step! Setting...

Adaptive (online/streaming) learning with uncertainty quantification and explanations using learningmachine in Python and R

Ever wondered how to visualize complex data distributions in a way that’s both insightful and aesthetically pleasing? Use the violin plot. It is a powerful tool that combines the best of boxplots and density plots, offering a comprehensive view of your...

Overall, I am quite impressed with the responses! With minimal prompt engineering, document cleaning! It was able to return accurate responses, and even separated different conditions and provided appropriate treatment options. It was also able to return the correct response for tricky questions that our RAG was not able to. ...

Suppose you are modeling a process that you believe is well approximated as being linear in its inputs, but only within a certain range. Outside that range, the output might saturate or threshold: for example if you are modeling a count or a physical process, you likely can never get […]

Lessons from Will Hunting and McGayverIn the world of data science, data cleaning is often seen as one of the most time-consuming and least glamorous tasks. Yet, it’s also one of the most critical. Without clean data, even the most sophisticated algorithms and models can produce misleading results. This ...

About this tutorial In summer 2024, Zotero had a major update to version 7. The update affected some of the setup routines that I outlined ages ago in the Zotero hacks post. The recipe laid out in that old post helped me painlessly update, move...

#207–208PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #207Sometimes we have task that are somehow related to real life, not just mind-bending puzzles. And today...

This is reposted from the original article: https://blog.stephenturner.us/p/use-r-to-prompt-a-local-llm-withUse R to prompt a local LLM with ollamar: Using R to prompt llama3.1:70b running on my laptop with Ollama + ollamar to tell me what's inter...

Introduction In this post, we’ll cover how to open an Excel workbook using VBA and then call this VBA code from R. This guide will help you automate tasks in Excel directly from R, combining the strengths of both tools. We’ll break down the VBA...

Puzzles no. 514–518PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #514Today we are searching for treasure. Exactly what we need is to find highest 2x2 submatrix ...

Have you ever thought R’s approach to machine learning is outdated? Like, data analysis and visualization tools are superb. Everything feels intuitive and every following step of your workflow integrates seamlessly. That’s by design. Or, the design of the tidyverse collection of packages. R tidymodels aims to do ...