Counting types of edges

In this exercise, you will count the number of each edge type using the edgeType column in the edgeList dataframe. In the edgeList$edgeType column, there are three different values:

0 for edges that connect two non-churn nodes.
1 for edges that connect a non-churn and a churn node. These are called mixed or cross-label edges.
2 for edges that connect two churn nodes.

This exercise is part of the course

Predictive Analytics using Networked Data in R

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Exercise instructions

Count the number of churn edges by conditioning on edgeList$edgeType. Assign the value to ChurnEdges.
Count the number of non-churn edges by conditioning on edgeList$edgeType. Assign the value to NonChurnEdges.
Count the number of mixed edges by conditioning on edgeList$edgeType. Assign the value to MixedEdges.
Count the total number of edges and assign the value to edges.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Count churn edges
ChurnEdges <- sum(edgeList$edgeType == ___)
 
# Count non-churn edges
NonChurnEdges <- sum(___ == ___)
 
# Count mixed edges
MixedEdges <- ___
 
# Count all edges
___ <- ChurnEdges + NonChurnEdges + MixedEdges

#Print the number of edges
edges

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