[dagw]

R is, at its core, a functional language with a bunch of largely optional imperative bits bolted on.

[sooheon]

One of R's great current evangelists, Hadley Wickham, is taking it back to its functional roots[1](http://cran.rstudio.com/web/packages/dplyr/vignettes/introdu...) as well.

[hadley]

See also http://github.com/hadley/purrr