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NICAR24 Web scraping in R with rvest - Pre-Registered Attendees Only

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Friday, March 8, 9 a.m. - 12:30 p.m. 

Cost: $40

Instructors: Hadley Wickham, Posit

Description: In this tutorial, you'll learn the basics of web scraping with R, using the rvest package. We'll discuss the basic structure of an HTML page, and how to find the elements you're interested in with selectorgadget or the browser's developer tools. You'll then learn how to programmatically extract with rvest, turning web pages into tidy data frames.

We'll also touch on scraping multiple pages, using a combination of httr2 to downloading many pages at once, then purrr to parse them and extract the values you care about.

This session is good for those with some experience using R and RStudio.

Preregistration is required and seating is limited. Mac laptops will be provided.

109 Lee Hills Hall, Missouri School of Journalism   |   221 S. Eighth St., Columbia, MO 65201   |   573-882-2042   |   |   Privacy Policy
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