Description Usage Arguments Value Author(s) See Also Examples
This function computes custom modularity of the citation graph. Custom modularity here stands for Newman's modularity computed over the subgraph comprising nodes that belong to a single corpus only and are within the time window, as well as direct outgoing neighbors of the former nodes (whatever their year tag). Basically, the citation graph considered thus includes publications within the time window as well as older papers that they cite.
1 | compute_custom_modularity(gr, infLimitYear, supLimitYear)
|
gr |
Citation graph |
infLimitYear |
Start year of the time window considered (included) |
supLimitYear |
End year of the time window considered (*excluded*) |
Returns the custom modularity value of the subgraph restricted to the interval [infLimitYear;supLimitYear[.
Christian Vincenot (christian@vincenot.biz)
compute_modularity
, plot_modularity_timeseries
1 2 3 4 5 6 7 8 9 10 11 12 | labels<-c("Corpus1","Corpus2")
# Build a bibliographical dataset from Scopus exports
db<-create_bibliography(corpora_files=c(tempfi1,tempfi2),
labels=labels, keywords=NA)
# Build graph
gr<-build_graph(db=db,small.year.mismatch=TRUE, attrs=c("Corpus","Year","Authors"), nb.cores=1)
# Compute Custom Modularity
compute_custom_modularity(gr, 1990, 2018)
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