February 2018
Beginner to intermediate
364 pages
10h 32m
English
Content preview from Python Web Scraping Cookbook
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How to do it
NLTK provides a class, ntlk.probabilities.FreqDist, that allow us to very easily calculate the frequency distribution of values in a list. Let's examine using this class (code is in 07/freq_dist.py):
- To create a frequency distribution using NLTK, start by importing the feature from NTLK (and also tokenizers and stop words):
from nltk.probabilities import FreqDistfrom nltk.tokenize import regexp_tokenizefrom nltk.corpus import stopwords
- Then we can use the FreqDist function to create a frequency distribution given a list of words. We will examine this by reading in the contents of wotw.txt (The War of the Worlds - courtesy of Gutenberg), tokenizing, and removing stop words:
with open('wotw.txt', 'r') as file: data = file
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.