The ScaleR package provides functions for performing scalable and extremely high performance data management, analysis, and visualization in R. It was only available to those who had a Microsoft R Server license—until now.
With the introduction of the free Microsoft R Client for Windows tool you can now work with the full set of ScaleR functions without having to part with a cent.
Of course, there’s a catch—there are constraints. Specifically
[…] the data to be processed must fit in local memory, and processing is limited up to two threads for ScaleR functions.
However, this allows you to prototype your analyses using the free client and push them to SQL Server or Hadoop using Microsoft R Server when you need to scale.