Extract PageRank features

In this exercise, you will compute a few PageRank scores and add them as features to the network.

When personalizing, use the prior churners in the network as the restart vector. That is, include the argument personalized = V(network)$Churn.

The default damping value is 0.85.

XP

1
Compute the default PageRank score, extract the vector and add it as an attribute to network called pr_0.85.
2
Compute the PageRank score with damping factor 0.2 and add it to network as pr_0.20.
3
Compute the default personalized PageRank score and call it perspr_0.85. Look at the instructions above to see how.
4
Compute the personalized PageRank score with damping factor 0.99 and name it perspr_0.99.