我正在尝试访问网页上的链接以转到下一个网页。我正在尝试提取有关TN中所有计划生育的信息,并从下面的网页开始
我想知道如何从此webpage开始并导航到诺克斯维尔健康中心的网页。我尝试将rvest软件包与以下内容一起使用...
library(rvest)
library(dplyr)
URL <- paste0("https://www.plannedparenthood.org/health-center/tn")
Webpage <- read_html(URL)
Webpage %>% html_nodes("p")
哪个给我...
{xml_nodeset (6)}
[1] <p itemprop="name" data-facility-id="2610" data-affiliate-name="Planned Parenthood of Tennessee ...
[2] <p itemprop="name" data-facility-id="3348" data-affiliate-name="Planned Parenthood of Tennessee ...
[3] <p itemprop="name" data-facility-id="4247" data-affiliate-name="Planned Parenthood of Tennessee ...
[4] <p itemprop="name" data-facility-id="2716" data-affiliate-name="Planned Parenthood of Tennessee ...
[5] <p>Planned Parenthood delivers vital reproductive health care, sex education, and information t ...
[6] <p class="site-footer-legal">\n <small>\n © 2020 Planned Parenthood Fed ...
不太确定要超越这一点。可以使用任何帮助。
您可以使用:来获得指向该网页的链接。
library(rvest) URL <- "https://www.plannedparenthood.org/health-center/tn" Webpage <- read_html(URL) all_links <- Webpage %>% html_nodes("p a") %>% html_attr('href') %>% paste0('https://www.plannedparenthood.org', .) all_links #[1] "https://www.plannedparenthood.org/health-center/tennessee/knoxville/37914/knoxville-health-center-2610-91550" #[2] "https://www.plannedparenthood.org/health-center/tennessee/memphis/38112/memphis-health-center-midtown-3348-91550" #[3] "https://www.plannedparenthood.org/health-center/tennessee/memphis/38122/memphis-health-center-near-summer-and-i240-4247-91550" #[4] "https://www.plannedparenthood.org/health-center/tennessee/nashville/37203/nashville-health-center-2716-91550"
您现在可以使用这些单独的链接进行进一步导航。