compute_modularity function

Function to compute citation graph modularity over a time window.

This function computes Newman's modularity of the citation graph restricted to a given time window and ignoring nodes belonging to both corpora simultaneously.

compute_modularity(gr, infLimitYear, supLimitYear)

Arguments

• gr: Citation graph
• infLimitYear: Start year of the time window considered (included)
• supLimitYear: End year of the time window considered (excluded)

Returns

Returns Newman's modularity value of the subgraph restricted to the interval [infLimitYear;supLimitYear[.

Author(s)

Christian Vincenot (christian@vincenot.biz)

See Also

compute_custom_modularity, plot_modularity_timeseries

Examples

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 Modularity
compute_modularity(gr, 1990, 2018)