Re: [Rd] Can't install.packages() from local repo in 2.15.2

2012-11-05 Thread Imanuel Costigan
Hi Prof. Ripley, There is in fact a parallel source repository (see my initial email): L:/R/src/contrib I had also run tools:write_PACKAGES() therein, generating an empty PACKAGES file as I have chosen not to release source packages. I would like to make two comments. First, I believe the

[Rd] Ops.data.frame

2012-11-05 Thread Hadley Wickham
Hi all, Where are the semantics for Ops.data.frame documented? I've tried looking in ?Ops.data.frame, ?data.frame, the "R language definition" (by searching for data frame), and "An Introduction to R" (similarly), but haven't found anything. What am I missing? Hadley -- RStudio / Rice Univers

[Rd] Another code to drop factor levels

2012-11-05 Thread Suharto Anggono Suharto Anggono
I apologize if this is not appropriate for this mailing list. In R, there is already functionality to drop unused factor levels. However, I am proposing the code below that I wrote. In some occasions, it was faster than applying function 'factor'. In any case, there is no restriction for anyone