I was wondering if anyone possibly had any experience integrating R into Rails, specifically, on heroku. I am familiar with the rsruby gem, which is the de facto (perhaps only)
I use Rserve with a wrapper which simplifies the interface, called Rserve-simpler.
http://rubygems.org/gems/rserve-simpler . It makes my life easier. I end up using R and Ruby together quite often.
Here is a question where I've explained some usage. How to pass a ts object to R via RSRuby