R爬取網頁資訊

標籤：utf-8   out   object   XML   ret   htm   reading   table   format   

#爬取電影票房資訊library(stringr)library(XML)library(maps)#htmlParse()用來interpreting HTML#建立一個objectmovie_parsed<-htmlParse("http://58921.com/boxoffice/wangpiao/20161004",                        encoding = "UTF-8")#the next step:extract tables/data#readHTMLTable() for identifying and reading out those tablestables<-readHTMLTable(movie_parsed,stringsAsFactors=FALSE)is.matrix(tables)is.character(tables)is.data.frame(tables)is.list(tables)#so we got an "list" format#

R爬取網頁資訊