How do you print to stderr in R?

Question

How do you print to stderr in R?

This would especially useful for scripts written in Rscript.

Answer 1

Is it possible to configure the print function to print to stderr?

From Ripley himself:

No, but where standard output goes is controlled by sink(), so you can achieve the same effect. R internally has no idea what output comes from print() (which is not just one function but hundreds of methods).