You should also check out http://purrr.tidyverse.org http://purrr.tidyverse.org and http://github.com/r-lib http://github.com/r-lib - we're working towards prov

You should also check out http://purrr.tidyverse.org http://purrr.tidyverse.org and http://github.com/r-lib http://github.com/r-lib - we're working towards providing tools that make general purpose programming more pleasant. (Not because R should ever be your primary general purpose language, but many data analyses often involve some general purpose components)