Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
R Web Scraping Quick Start Guide

You're reading from   R Web Scraping Quick Start Guide Techniques and tools to crawl and scrape data from websites

Arrow left icon
Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781789138733
Length 114 pages
Edition 1st Edition
Languages
Concepts
Arrow right icon
Author (1):
Arrow left icon
Olgun Aydin Olgun Aydin
Author Profile Icon Olgun Aydin
Olgun Aydin
Arrow right icon
View More author details
Toc

Summary

In this chapter, we have learned how to write scraping script using the RSelenium library. First, we worked on how to use selenium drivers on R and then we worked on how to use XPath rules with the RSelenium package. Afterward, we wrote our first web-scraping script using the RSelenium library to collect the user who commented to the specific post and who is mentioned in the comments to the specific post. Then we tried to send a click event and. Finally, we used Regex rules to extract the information that we were interested in.

In the next chapter, we will talk about the fundamentals of cron jobs and databases. At the end of the next chapter, we will be writing our creating cron job to schedule our web-scraping task and learn how to store collected data on databases.

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime