For some data.table users, “dot-SD” is a bit of a mystery. But data.table creator Matt Dowle told me that it’s actually quite simple: Just think of it as a symbol representing “each group.” Let’s go ...

Are you learning the R programming language? Do you want to learn how to do more tasks with R? Check out our Do More With R tutorials below — many with videos shorter than 10 minutes. In the table ...

This online data science specialization is designed for anyone interested in learning how to program in R. You will learn the basics of R, including imputing data, performing basic analysis, graphing, ...

“I don’t have time to learn it.” We’ve all said it — some of us are still saying it. Many dream of being more data savvy, and so resolve to learn R (or Python, or C or whatever programming language is ...

[Simon Willison] has put together a list of how, exactly, one goes about using a large language models (LLM) to help write code. If you have wondered just what the workflow and techniques look like, ...

Using open-source frameworks, analysts can create customized dashboards that strengthen business reporting for real-time data. Funny how time flies for technological choices. Back in 2015 I wrote ...