ESS418 Research Methods in Social Science
Assignment 2: Social Network Analysis
Submit due to: 25. 10. 2015
Create an R script that runs following operations.
 Create a new script.
 Create a random graph that consists of 5 nodes. (2 points)
 Save the matrix as *.csv and *.txt files. (2 points)
 Convert the matrix to a network.
 Calculate standardized degree, closeness, and betweenness centrality. (2 points)
 Calculate non-standardized degree, closeness, and betweenness centralization. (2 points)
 Visualize the network (node labels do not have to be displayed). (2 points)
 Bonus: visualize node size as a function of node’s degree. (2 points)
 Save the script and upload it to the “Assignment 2” folder in Homework Vaults.
Hint: use rgraph() function for generation of a random graph.