Sorry I’m a bit late on this—I’ve been traveling lately. I’ll have the screencast posted in the next few days.
Debugging tools in R can help the user find problems in his or her programming quickly and efficiently. While R is generally a pretty friendly language, the problems that arise can be quite different from other languages (e.g. C or C++). I’ll show how to use several built-in debugging tools in R.
General Outline:
1) How R reports problems in function execution: errors and warnings
2) Print the call stack with traceback
3) Stepping through the problem with debug
4) Inserting code with trace
5) Optional: using browser and recover
If this proves to be too lengthy for the 3 minute limit, I’ll focus on one or two debugging tools.