The three most common open source technologies for writing data science programs are Python, SciLab, and R. Here's how to write program-defined functions in R. There's no clear definition of the term ...

See how the purrr package’s possibly() function helps you flag errors and keep going when applying a function over multiple objects in R. It’s frustrating to see your code choke part of the way ...

Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...

Do you want to use ggplot2, dplyr, or other tidyverse functions in your own functions? This easy example shows how Tidy evaluation in R, or tidy eval for short, is a pretty complex topic. But for some ...