This assumes you have already constructed a package as suggested in Writing R Packages.

### Instructions

Suggests: knitr
VignetteBuilder: knitr
2. Create a directory vignettes in your package’s root directory, and put your .Rnw file in it. Here’s an example vignette file and a BibTeX file you can start with. (This is the vignette it generates.)

3. Run the command

      devtools::build_vignettes()

The .pdf file created should be in the folder yourpackage/inst/doc/.

knitR is a powerful package. See its main page for details on all the things you can do with it, especially the chunk options.