Skip to Content
Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
book

Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

by Steven Lawrence Fernandes, Tim Cox
April 2018
Beginner content levelBeginner
552 pages
13h 58m
English
Packt Publishing
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

How to do it...

  1. Initialize a new Python file by importing the following file:
import numpy as np 
from nltk.corpus import brown 
from chunking import splitter 
  1. Define the main function and read the input data from Brown corpus:
if __name__=='__main__': 
        content = ' '.join(brown.words()[:10000]) 
  1. Split the text content into chunks:
    num_of_words = 2000 
    num_chunks = [] 
    count = 0 
    texts_chunk = splitter(content, num_of_words) 
  1. Build a vocabulary based on these text chunks:
    for text in texts_chunk: 
      num_chunk = {'index': count, 'text': text} 
      num_chunks.append(num_chunk) 
      count += 1
  1. Extract a document word matrix, which effectively counts the amount of incidences of each word in the document:
  from sklearn.feature_extraction.text       import ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Raspberry Pi for Python Programmers Cookbook - Second Edition

Raspberry Pi for Python Programmers Cookbook - Second Edition

Tim Cox

Publisher Resources

ISBN: 9781788629874Supplemental Content