add.centrality.variables.to.data.frame
                        Main function of the package. Creates the
                        graphs and adds the centrality variables to the
                        data frame.
create.centrality.variable
                        Return a vector with the centrality scores
create_a_new_unique_var_name
                        Provides variable name that is not already
                        exists in the data frame data
find.word.code.in.wordreport
                        Find the index of the word
freeassociationdata     Free association data to demonstrate wordgraph
                        package functionality.
freq.of.all.combinations.df
                        Count all combinations between the values of
                        column1 and column2.
freq.of.all.combinations.df.numeric
                        Special case of freq.of.all.combinations.df
get.all.graphs          Creates one ggraph object for each available
                        centrality functions.
get.all.word.pairs.frequency
                        Count all combinations between each concecutive
                        pair of variables.
get.graph.1.n.group.centrality.with.function
                        Creates a ggraph object.
get.word.centrality     Returns the centrality of the word.
get.word.combinations.as.tbl_graph
                        Calculate all word pairs frequencies.
get_label_from_columnrow
                        Returns the label of a value.
graph_plot              Plots a graph.
prepare.file            Remove all the multiple blanks of the selected
                        R output, in order to copied correctly to
                        LibreOffice Calc.
