3. Empirical results
The R environment [22] is an open source, multiple platform (e.g. Windows, Linux) and high-level matrix programming language for statistical and data analysis. All experiments reported in this work were written in R and conducted in a Linux server, with an Intel dual core processor. In particular, we adopted the RMiner [6], a library for the R tool that facilitates the use of DM techniques in classification and regression tasks.