sigmajs: An R htmlwidget interface to the sigma.js visualization library

The package sigmajs (Coene, 2018) bridges the sigma.js JavaScript library and R (R Core Team, 2018) via the htmlwidgets package (Vaidyanathan, Xie, Allaire, Cheng, & Russell, 2018). The package also extends the original JavaScript library (sigma.js) by providing additional functions, namely using the igraph package (Csardi & Nepusz, 2006) to enable the user to layout and cluster graphs. Finally sigmajs is also integrated with the crosstalk package (Cheng, 2016) which lets graphs be wired to other htmlwidgets such as plotly (Sievert et al., 2017) and leafelt (Cheng, Karambelkar, & Xie, 2018).