colorscheme             'colorscheme(x)' selects color scheme of
                        graphical output. Function parameter NULL lists
                        all available color schemes, 1 a color tuple of
                        green and blue 2 a color tuple of dark green
                        and turquoi, 3 a colorplaette as defined by
                        RcolorBrewer
counts_to_cases         Convert data frame of counts to data frame of
                        cases. data frame must contain a column with
                        frequencies (counts) as generated by
                        as.data.frame from a contingency table
get_samples_fact_inputfile
                        Selects columns defined by characters varsample
                        and varfactor from a data.frame
openGraphCairo          Cairo wrapper function
saveGraphVisstat        Saves Graphical Output
vis_anova_assumptions   Testing ANOVA assumptions
visstat                 Visualization of statistical hypothesis testing
                        based on decision tree
