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R Web Scraping Quick Start Guide. Techniques and tools to crawl and scrape data from websites Olgun Aydin

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R Web Scraping Quick Start Guide. Techniques and tools to crawl and scrape data from websites Olgun Aydin - okladka książki

R Web Scraping Quick Start Guide. Techniques and tools to crawl and scrape data from websites Olgun Aydin - okladka książki

Autor:
Olgun Aydin
Ocena:
Bądź pierwszym, który oceni tę książkę
Stron:
114
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Web scraping is a technique to extract data from websites. It simulates the behavior of a website user to turn the website itself into a web service to retrieve or introduce new data. This book gives you all you need to get started with scraping web pages using R programming.

You will learn about the rules of RegEx and Xpath, key components for scraping website data. We will show you web scraping techniques, methodologies, and frameworks. With this book's guidance, you will become comfortable with the tools to write and test RegEx and XPath rules.

We will focus on examples of dynamic websites for scraping data and how to implement the techniques learned. You will learn how to collect URLs and then create XPath rules for your first web scraping script using rvest library. From the data you collect, you will be able to calculate the statistics and create R plots to visualize them.

Finally, you will discover how to use Selenium drivers with R for more sophisticated scraping. You will create AWS instances and use R to connect a PostgreSQL database hosted on AWS. By the end of the book, you will be sufficiently confident to create end-to-end web scraping systems using R.

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O autorze książki

Olgun Aydin is a PhD candidate at the Department of Statistics at Mimar Sinan University, and is studying deep learning for his thesis. He also works as a data scientist. Olgun is familiar with big data technologies, such as Hadoop and Spark, and is a very big fan of R. He has already published academic papers about the application of statistics, machine learning, and deep learning. He loves statistics, and loves to investigate new methods and share his experience with other people.

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