Smix                    Survival function of discrete extreme value
                        mixture distribution
Supp                    Survival function of discrete power law
chi_citations           Citation network of CHI papers
cran_dependencies       Dependencies of CRAN packages
df_to_graph             Construct the giant component of the network
                        from two data frames
dmix                    Probability mass function (PMF) of discrete
                        extreme value mixture distribution
dupp                    Probability mass function (PMF) of discrete
                        power law
get_dep_all_packages    Dependencies of all CRAN packages
get_dep_df              Multiple types of dependencies
get_graph_all_packages
                        Graph of dependencies of all CRAN packages
mcmc_mix                Markov chain Monte Carlo for discrete extreme
                        value mixture distribution
mcmc_upp                Markov chain Monte Carlo for discrete power law
topo_sort_kahn          Return a sorted vector of nodes id
