curriculum_rigidity: Calculates the curriculum rigidity
Description
This function takes in a plan of study and then finds the curriculum's rigidity.
The rigidity is the beta index of the graph, which is the number of prerequisites
divided by the number of courses
Usage
curriculum_rigidity(plan_of_study)
Value
Numeric - the curriculum rigidity
Arguments
- plan_of_study
igraph object - An igraph object created using the create_plan_of_study function