graphExtra

Manipulation and plotting accessories for igraph objects

Basic usage

The package offers few functional tools that may help to integrate great tools of igraph in tidyverse-styled analysis pipelines:

• as_iGraph(): generates igraph objects from a wide range of similarity and distance matrices as well as numeric matrices and data frames with similarity or correlation metrics defined by the user
• prune_degree(), select_vertices(), and prune_vertices() allow for selection or removal of graph vertices based on a degree cutoff or logical expressions
• split_vertices() splits a graph into subgraphs by levels of one or more vertex attributes; this may be especially interesting for detailed analyses of communities
• get_vertex_attributes() and set_vertex_attributes() let the user fetch and set multiple vertex attributes with a data frame or a tibble
• add_community() merges the community information obtained with one of the clustering tools offered by igraph package with vertex attributes
• summary() computes a bunch of common vertex importance statistics such as degree, betweenness, and hub score
• plot() overwrites the respective default method to generate ggplot-compatible graphics for igraph objects
• neighbor_graph() and neighbor_attr() extract the neighborhood of a vertex of interest and the neighborhood attributes, respectively

Installation

You may easily fetch the package via devtools:

devtools::install_github('PiotrTymoszuk/graphExtra')

Terms of use

The package is available under a GPL-3 license.

Contact

The package maintainer is Piotr Tymoszuk.

Acknowledgements

Many thanks to authors, maintainers and contributors of the tidyverse evironment, and packages igraph and ggnetwork.