collapse_responseset.data.frame
                        Collapse multiple response sets to single
                        variable
count_na                Count the number of NAs in each row or in each
                        column
d.eta                   Sample data set for eta function examples
d.ngo                   NGO Dataset
d.superiority           Student self assessment data
eta                     Eta coefficient for nominal/interval data.
foo                     A function to demonstrate how an R function is
                        defined.
intervals               Use standard mathematical interval notation in
                        'recode' from 'car' package
nom.lambda              Calculate Lambda for nominal data tables.
nom.uncertainty         Calculate the Uncertainty Coefficient (Theil's
                        U)
ord.gamma               Calculate Goodman-Kruskal gamma for ordinal
                        data tables.
ord.somers.d            Calculate Somers' d for ordinal data tables.
ord.tau                 Calculate Kendall's Tau statistics for ordinal
                        data tables (Tau-b and Tau-c).
qqnorm_spss             SPSS like QQ-plot
recode2                 Wrapper for 'recode' from 'car' to allow to
                        recode multiple columns at once
rowMeans2               Form row means taking into account a minimum
                        number of values required
ryouready               'ryouready': An R package to accompany the 'R
                        you ready?' R book
