Here a list of the most important functions for network descriptives in R network and iGraph package is provided. The table below shows the equivalent functions in both packages.

Function in R network package Equivalent in R iGraph package Description
plot() plot() Visualize the network
network.size() vcount() Get the number of nodes (vertices) in the network
gden() graph.density() or edge_density() Calculate the network density
largest.component() then geodist() and max() diameter() Calculate the network diameter
gtrans() transitivity() Calculate the clustering coefficient