[Rd] Best practices in developing package: From a single file

[Suzen, Mehmet]

Dear R developers,

I am wondering what are the best practices for developing an R
package. I am aware of Hadley Wickham's best practice
documentation/book (http://r-pkgs.had.co.nz/).  I recall a couple of
years ago there were some tools for generating a package out of a
single file, such as using package.skeleton, but no auto-generated
documentation. Do you know a way to generate documentation and a
package out of single R source file, or from an environment?

Many thanks,
Mehmet