If you've ever found yourself copying the same formula down hundreds of rows in Excel, you know how tedious it gets. The usual approach, dragging formulas, adjusting cell references, and hoping ...

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 ...

The standard Hawkes process is constructed from a homogeneous Poisson process and uses the same exciting function for different generations of offspring. We propose an extension of this process by ...