[ianformanek]

Hi there, Ian here, the other founder of Cluvio.

There are some limitations to the R execution environment, as you correctly expect, as a result of running custom code in the hosted environment.

Our use case for R is to provide additional expressivity for things that are harder to do in SQL and very easy in R, as part of the data pipeline. We do not allow to run some system calls and do not allow to install additional packages.

Having said that, we do currently include some good basis with plyr, dplyr, reshape, and more will be added based on demand.