rvest

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Overview

rvest helps you scrape information from web pages. It is designed to work with magrittr to make it easy to express common web scraping tasks, inspired by libraries like beautiful soup.

library(rvest)
lego_movie <- read_html("http://www.imdb.com/title/tt1490017/")

rating <- lego_movie %>% 
  html_nodes("strong span") %>%
  html_text() %>%
  as.numeric()
rating
#> [1] 7.8

cast <- lego_movie %>%
  html_nodes("#titleCast .primary_photo img") %>%
  html_attr("alt")
cast
#>  [1] "Will Arnett"     "Elizabeth Banks" "Craig Berry"    
#>  [4] "Alison Brie"     "David Burrows"   "Anthony Daniels"
#>  [7] "Charlie Day"     "Amanda Farinos"  "Keith Ferguson" 
#> [10] "Will Ferrell"    "Will Forte"      "Dave Franco"    
#> [13] "Morgan Freeman"  "Todd Hansen"     "Jonah Hill"

poster <- lego_movie %>%
  html_nodes(".poster img") %>%
  html_attr("src")
poster
#> [1] "https://m.media-amazon.com/images/M/MV5BMTg4MDk1ODExN15BMl5BanBnXkFtZTgwNzIyNjg3MDE@._V1_UX182_CR0,0,182,268_AL_.jpg"

Installation

Install the release version from CRAN:

install.packages("rvest")

Or the development version from GitHub

# install.packages("devtools")
devtools::install_github("tidyverse/rvest")

Key functions

The most important functions in rvest are:

To see examples of these function in use, check out the demos.

Inspirations

Code of Conduct

Please note that the rvest project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.