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1.1. Simple descriptives - Network size
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# install and load the necessary packages
# if (!require(pacman)){
# install.packages(
# "pacman",
# repos="https://cran.rstudio.com/",
# quiet=TRUE
# )}
# p_load(statnet)
# p_load_current_gh("DougLuke/UserNetR")
# load the data
# load("Facebook(asnetwork).RData")
n_vertices <- ...
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