This function takes in a plan of study and plots it in the 'plot' window. The courses are ordered horizontally by term and vertically by the outdegree (i.e., number of prereqs) of the vertices in that column/term. The shading of the nodes corresponds to the cruciality of the course. A darker blue indicates higher cruciality while white indicates lower cruciality.
plot_plan_of_study(plan_of_study)Plots the plan of study in the 'plot' window
igraph object - An igraph object created using the create_plan_of_study function
Note that there can be some overlap where a course is covering a path for a prereq, which may make is seem like a course is a prereq for some other course when it is in fact the course in a previous semester.