summary.cranly_network: Compute a range of package directives and collaboration network statistics

Description

Compute a range of package directives and collaboration network statistics

Usage

# S3 method for cranly_network
summary(object, advanced = TRUE, ...)

Arguments

object

a cranly_network object.

advanced

logical. If FALSE (default) only basic network statistics are computed; if TRUE advanced statistics are also included in the computation (see Details).

...

currently not used`

Value

A data.frame of various statistics for the author collaboration network or the package directives network, depending on whether attr(object, "perspective") is "author" or "package", respectively. See Details for the current list of statistics returned.

Details

If attr(object, "perspective") is "package" then the resulting data.frame will have the following variables:

package. package name
n_authors (basic). number of authors for the package
n_imports (basic). number of packages the package imports
n_imported_by (basic). number of times the package is imported by other packages
n_suggests (basic). number of packages the package suggests
n_suggested_by (basic). number of times the package is suggested by other packages
n_depends (basic). number of packages the package depends on
n_depended_by (basic). number of packages that have the package as a dependency
n_enhances (basic). number of packages the package enhances
n_enhanced_by (basic). number of packages the package is enhanced by
n_linking_to (basic). number of packages the package links to
n_linked_by (basic). number of packages the package is linked by
betweenness (advanced). the package betweenness in the package network; as computed by igraph::betweenness()
closeness (advanced). the closeness centrality of the package in the package network; as computed by igraph::closeness()
page_rank (advanced). the Google PageRank of the package in the package network; as computed by igraph::page_rank()
degree (advanced). the degree of the package in the package network; as computed by igraph::degree()
eigen_centrality (advanced). the eigenvector centrality score of the package in the package network; as computed by igraph::eigen_centrality()

If attr(object, "perspective") is "author" then the resulting data.frame will have the following variables:

author. author name
n_packages (basic). number of packages the author appears in the package authors
n_collaborators (basic). total number of co-authors the author has in CRAN
betweenness (advanced). the author betweenness in the author network; as computed by igraph::betweenness()
closeness (advanced). the closeness centrality of the author in the author network; as computed by igraph::closeness()
page_rank (advanced). the Google PageRank of the author in the author network; as computed by igraph::page_rank()
degree (advanced). the degree of the author in the author network; as computed by igraph::degree(); same as n_collaborators
eigen_centrality (advanced). the eigenvector centrality score of the author in the author network; as computed by igraph::eigen_centrality()