Amazon.com Widgets [Read more...]

I’ve been asked how to do this several times, so I thought it might help to put an example online. x [Read more...]

Many R users seem to get themselves in a bit of a mess with R files and workspaces scattered across different directories. The R files themselves also get messy and hard to follow. So here is some advice on keeping organized with R: Try to keep code ... [Read more...]

Anyone who starts writing serious R code (i.e., code that involves user-written functions) soon finds the need to use debugging tools. There are a few basic tools in R that are worth knowing about. The function debug() allows one to step through the ex... [Read more...]