wiki_table: Scrape a table from Wikipedia page

In niedermansam/wikiScraper: Scraping and formatting information from Wikipedia pages.

Description

A function to parse and extract an HTML table from a Wikipedia page.

Usage

wiki_table(page, n = 1, header_length = "auto", skip = "auto",
  col_names = NULL, rm_header_text = NULL, rm_brackets = TRUE,
  rm_parens = FALSE, delay = 1)

Arguments

page	Either the url of a Wikipedia, or an object that contains a Wikipedia page
n	An integer that specifies which table to get data from. Defaults to 1, which retrieves the first table element in the HTML object or web page passed.
header_length	Set to a number greater than one to deal with multi-row headers. Takes an integer and defaults to 1.
skip	The number of rows to skip before collecting data. This is useful for omitting full-width "title" cells. Takes an integery and defaults to 0.
col_names	Optional argument that takes a character vector to name columns in the output table.
delay	Rate at which to throttle calls. There is no delay if the function is passed an HTML object (e.g. from wiki_page). Defaults to 1, can be turned off by setting to 0. Time between calls is determined by multiplying the value of this parameter with the response time by the server.
exclude_brackets	Whether to exclude brackets and their contents in output. Takes a boolean and defaults to TRUE.
exclude_parens	Whether to exclude parenthesis and their contents in output. Takes a boolean and defaults to FALSE

Value

Returns a dataframe (tibble) that contains the data from the table specified by the argument n.

Examples

wiki_table("https://wikipedia.org/wiki/List_of_metro_systems")
wiki_table("List_of_metro_systems")

niedermansam/wikiScraper documentation built on Nov. 4, 2019, 10:06 p.m.