Bibliography
- https://cran.r-project.org/web/packages/qgraph/qgraph.pdf
- https://github.com/SachaEpskamp/qgraph
- https://github.com/igraph/igraph
- https://www1.pub.informatik.uni-wuerzburg.de/demos/forceDirected.html
- https://www.youtube.com/playlist?list=PLubYOWSl9mIvtnRjCCHP3wqNETTHYjQex
- https://www.ibm.com/developerworks/cn/web/0909_fudl_flashsocial/#major3
- https://en.wikipedia.org/wiki/Coulomb%27s_law
- https://en.wikipedia.org/wiki/Hooke%27s_law
- https://github.com/chaangliu/ForceDirectedLayout
- https://cs.brown.edu/people/rtamassi/gdhandbook/chapters/force-directed.pdf