Introduction to the Modeling and Analysis of Complex Systems

316 CHAPTER 15. BASICS OF NETWORKSLet’s work on a simple example. You can create your own adjacency list in a regularspreadsheet (such as Microsoft Excel or Google Spreadsheet) and then save it in a “csv”format file (Fig. 15.6). In this example, the adjacency list says that John is connected toJane and Jack; Jess is connected to Josh and Jill; and so on.Figure 15.6: Creating an adjacency list in a spreadsheet.You can read this file by using the read_adjlist command, as follows:Code 15.14: read-adjlist.pyfrom pylab import *import networkx as nxg = nx.read_adjlist(’myNetworkData.csv’, delimiter = ’,’)nx.draw(g, with_labels = True)show()The read_adjlist command generates a network by importing a text file that lists thenames of nodes in the adjacency list format. By default, it considers spaces (’ ’) a separator,so we need to specify the delimiter = ’,’ option to read the CSV (comma separated