migraph

About the package

The most commonly used R packages available for network analysis, such as {igraph} or {sna}, are mainly oriented around directed or undirected one-mode networks. But researchers are increasingly interested in analysing multimodal (one-, two-, or three-mode), multilevel (connected multimodal networks), or multilayer (multiplex or signed) networks. Existing procedures typically involve ‘projecting’ them into one-mode networks so that they can be used with those tools, but thereby potentially losing important structural information, or require one or more other specific packages. Translating between packages various syntaxes and expectations can introduce significant transaction costs though, driving confusion, inefficiencies, and errors.

{migraph} builds upon {manynet} to offer smart solutions to these problems. {migraph} includes functions for analysing and modelling these networks. Since it is based on {manynet}, every function works for any compatible network format - from base R matrices or edgelists as data frames, {igraph}, {network}, or {tidygraph} objects. This means it is compatible with your existing workflow, is extensible by other packages, and uses the most efficient algorithm available for each task.

• About the package
  • Package background
• How does migraph help?
• Tutorials
• Installation
  • Stable
  • Development
• Relationship to other packages
• Funding details

Package background

The package is intended as a software companion to the book:

David Knoke, Mario Diani, James Hollway, and Dimitris Christopoulos (2021) Multimodal Political Networks. Cambridge University Press: Cambridge.

Most datasets used in the book are included in this package, and manynet and {migraph} together implement most methods discussed in the book. Since many of theses datasets and routines are discussed and analysed more there, if you like the package(s) please check out the book, and vice versa.

How does migraph help?

{migraph} allows the testing of {manynet} measures against conditional uniform graph (CUG) or quadratic assignment procedure (QAP) distributions using:

• test_distribution(), test_fit(), test_gof(), test_permutation(), test_random()

Hypotheses can also be tested within multivariate models via multiple (linear or logistic) regression QAP:

• network_reg()

{migraph} is the only package that offers these testing frameworks for two-mode networks as well as one-mode networks.

Tutorials

Together with {manynet}, this package makes available interactive {learnr} tutorials. The easiest way to access the tutorials is via run_tute(). If no tutorial name is provided, the function will return a list of tutorials currently available in either package:

library(migraph)
run_tute()
#> # A tibble: 9 × 3
#>   package name      title                   
#>   <chr>   <chr>     <chr>                   
#> 1 manynet tutorial0 Intro to R              
#> 2 manynet tutorial1 Data                    
#> 3 manynet tutorial2 Visualisation           
#> 4 manynet tutorial3 Centrality              
#> 5 manynet tutorial4 Community               
#> 6 manynet tutorial5 Position                
#> 7 manynet tutorial6 Topology                
#> 8 manynet tutorial7 Diffusion               
#> 9 migraph tutorial8 Diversity and Regression
# run_tute("tutorial5")

For more details on the {learnr} package, see here.

Installation

Stable

The easiest way to install the latest stable version of {migraph} is via CRAN. Simply open the R console and enter:¹

install.packages('migraph')

You can then begin to use {migraph} by loading the package:

library(migraph)

This will load any required packages and make the data contained within the package available.

{migraph} relies on some packages only for one or two rather specific functions. By default these are not installed together with {migraph}, but we make it easy to install them as and when needed for the first time with a console prompt. If you would prefer not to encounter these prompts, or plan to use the package for the first time through tutorials, you can make sure all the dependencies are installed with:

install.packages('migraph', dependencies = TRUE)

Development

For the latest development version, for slightly earlier access to new features or for testing, you may wish to download and install the binaries from Github or install from source locally.

The latest binary releases for all major OSes – Windows, Mac, and Linux – can be found here. Download the appropriate binary for your operating system, and install using an adapted version of the following commands:

• For Windows: install.packages("~/Downloads/migraph_winOS.zip", repos = NULL)
• For Mac: install.packages("~/Downloads/migraph_macOS.tgz", repos = NULL)
• For Unix: install.packages("~/Downloads/migraph_linuxOS.tar.gz", repos = NULL)

To install from source the latest main version of {migraph} from Github, please install the {remotes} or {devtools} package from CRAN and then:

• For latest stable version: remotes::install_github("stocnet/migraph")
• For latest development version: remotes::install_github("stocnet/migraph@develop")

Other sources

Those using Mac computers may also install using Macports:

sudo port install R-migraph

Relationship to other packages

{migraph} draws together, updates, and builds upon many functions currently available in other excellent R packages such as {bipartite}, {multinet}, {tnet}, and {xUCINET}.

Funding details

Most work on this package has been funded by the Swiss National Science Foundation (SNSF) Grant Number 188976: “Power and Networks and the Rate of Change in Institutional Complexes” (PANARCHIC).