Вот решение, используя rvest
пакет:
library(rvest)
url.parse<-read_html("https://www.kickstarter.com/projects/1154444340/god-in-new-york/description")
reward<-url.parse%>%
html_nodes("h5")%>%
html_text(trim=TRUE)
reward
[1] "$10 reward" "$15 reward" "$30 reward" "$50 reward"
backers<-url.parse%>%
html_nodes("span.num-backers.mr1")%>%
html_text(trim=TRUE)
backers
[1] "17 backers" "9 backers" "9 backers" "30 backers"
Если вы хотите, как в одном dataframe:
df1<-data.frame(do.call(cbind,lapply(c("span.num-backers.mr1","h5"),
function(i) {
url.parse %>%
html_nodes(i) %>%
html_text(trim=TRUE)
})))
df1
X1 X2
1 17 backers $10 reward
2 9 backers $15 reward
3 9 backers $30 reward
4 30 backers $50 reward
Если у вас есть список URL-адресов, вы можете действовать следующим образом:
url_kick<-c("https://www.kickstarter.com/projects/1154444340/god-in-new-york/description","https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured")
data.frame(do.call(rbind,lapply(url_kick,function(url_name){
kk<-data.frame(do.call(cbind,lapply(c("span.num-backers.mr1","h5"),
function(i) {
read_html(url_name) %>%
html_nodes(i) %>%
html_text(trim=TRUE)
})))
return(cbind(kk,urlname=url_name))})))
X1 X2 urlname
1 17 backers $10 reward https://www.kickstarter.com/projects/1154444340/god-in-new-york/description
2 9 backers $15 reward https://www.kickstarter.com/projects/1154444340/god-in-new-york/description
3 9 backers $30 reward https://www.kickstarter.com/projects/1154444340/god-in-new-york/description
4 30 backers $50 reward https://www.kickstarter.com/projects/1154444340/god-in-new-york/description
5 1 backer Josh Ginter https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
6 1 backer Project by Josh Ginter https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
7 3 backers Pledge $1 or more\n\nAbout $1 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
8 3 backers About $1 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
9 3 backers Pledge $1 or more\n\nAbout $1 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
10 3 backers About $1 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
11 6 backers Pledge $5 or more\n\nAbout $5 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
12 6 backers About $5 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
13 1 backer Pledge $5 or more\n\nAbout $5 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
14 1 backer About $5 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
15 3 backers Pledge $10 or more\n\nAbout $10 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
16 3 backers About $10 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
17 3 backers Pledge $10 or more\n\nAbout $10 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
18 3 backers About $10 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
19 6 backers Pledge $25 or more\n\nAbout $25 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
20 6 backers About $25 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
21 1 backer Pledge $25 or more\n\nAbout $25 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
22 1 backer About $25 USD https://www.kickstarter.com/projects/1685845978/creature-and-hand-1-an-accordion-comic?ref=category_featured
У них нет публичного API, поэтому вам придется его очистить. – ceejayoz
@ceejayoz пожалуйста, если возможно, не могли бы вы привести мне пример? – angs
Downvote for "не показывает никаких исследований". Вы искали помощь в этом, потому что там много. Попробуйте просмотреть представление R Web Technologies (google для этого, если вы не знаете, что это такое). – Spacedman