K-Means (K-means clustering). The data given from input file is clustered by the k-means method, which aims to partition the points into k groups such that the sum of squares from points to the assigned cluster centres is minimized. At the minimum, all cluster centres are at the mean of their Voronoi sets (the set of data points which are nearest to the cluster centre).
This program use statistical functions from "R" free software environment for statistical computing and graphics (http://www.r-project.org).
This program requires the R-package to be installed on your computer.