Applied Text Analysis with Python by Benjamin Bengfort

Author:Benjamin Bengfort
Language: eng
Format: epub
Publisher: O'Reilly Media
Published: 2018-06-25T16:00:00+00:00

Figure 8-2. Force-directed ego graph for the Wizard of Oz

Note

The construction and utility of property graphs as well as NetworkX’s add_edge, ego_graph and draw methods will be discussed in greater detail in Chapter 9.

Co-occurrence plots

Co-occurrence is another way to quickly understand relationships between entities or other n-grams, in terms of the frequency with which they appear together. In this section we’ll use Matplotlib to plot character co-occurrences in The Wizard of Oz.

First, we create a function matrix that will take in the text of the book and the list of characters. We initialize a multidimensional array that will be a list that contains a list for every character with the count of its co-occurrences with every other character:

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