Source: dataset
A network can be represented by an *adjacency
matrix*, where each cell *ij* represents an edge from vertex *i* to vertex *j*. Here,
vertices
represent students/teachers, while edges represent contact.
Given this two-dimensional representation of a graph, a natural visualization is to show the matrix! However, the
effectiveness of a matrix diagram is heavily dependent on the order of rows and columns: if related nodes are placed
closed to each other, it is easier to identify clusters and bridges.
The multiple ordering algorithms are provided by the library Reorder.js.