The program calculates means of the values in columns of data in table format
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.
Program is provided with viewer.
Input file should contain table of numerical data: lines for observations (cases) columns should be separated by tabulation or user-defines symbol (;, etc); for example, if comma (,) separator is used, the file format is the same as the CSV (comma separated values) format. No missing data allowed.