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Automated Data Collection with R
A Practical Guide to Web Scraping and Text Mining
- Editore:
Wiley John + Sons
- EAN:
9781118834817
- ISBN:
111883481X
- Pagine:
- 474
- Formato:
- Hardback
- Lingua:
- Inglese
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Descrizione Automated Data Collection with R
A hands on guide to web scraping and text mining for both beginners and experienced users of R * Introduces fundamental concepts of the main architecture of the web and databases and covers HTTP, HTML, XML, JSON, SQL. * Provides basic techniques to query web documents and data sets (XPath and regular expressions). * An extensive set of exercises are presented to guide the reader through each technique. * Explores both supervised and unsupervised techniques as well as advanced techniques such as data scraping and text management. * Case studies are featured throughout along with examples for each technique presented. * R code and solutions to exercises featured in the book are provided on a supporting website.
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