See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package. R has a number of quick, elegant ways to join data ...

Why write SQL queries when you can get an LLM to write the code for you? Query NFL data using querychat, a new chatbot component that works with the Shiny web framework and is compatible with R and ...

We often want to “subset” our data. That is, we only want to look at data for a certain year, or from a certain class products or customers. We generally call this process “filtering” in Excel or ...