This is a friendly introduction to variadic templates (and thereby, variadic functions) in C++. We can use variadic functions to write functions that accept an arbitrary number of arguments.
Read More →Let’s investigate what, underneath the
covers, an R function really is, and how
the components are used when R evaluates
a function. In doing so, we’ll take a
number of detours, as understanding how R
function calls really work requires an
understanding of some subtle details. By
the end of this, we’ll be able to simulate
what R does internally when it evaluates
a function.
Are you familiar with testthat? It’s another package from the Hadleyverse that makes it easy (and fun!) to write unit tests for your R code. The tests you write look something like this:
Read More →I was recently introduced to the joys of
tmux by
a colleague, and felt like sharing a bit of
what I learned.
We talked about
debugging with valgrind
last time, and saw how we can catch an insidious kind
of memory usage error called a segfault with its
memcheck tool.