R self reference

Question

In R I find myself doing something like this a lot:

adataframe[adataframe$col==something]<-adataframe[adataframe$col==something)]+1

Answer 1

I'd be partial to (presumably the subset is on rows)

ridx <- adataframe$col==something
adataframe[ridx,] <- adataframe[ridx,] + 1

which doesn't rely on any fancy / fragile parsing, is reasonably expressive about the operation being performed, and is not too verbose. Also tends to break lines into nicely human-parse-able units, and there is something appealing about using standard idioms -- R's vocabulary and idiosyncrasies are already large enough for my taste.