1
网络Exrtacting数据我试图我使用下面的代码从第从,使用R
http://www.covers.com/sports/NCAAB/matchups?selectedDate=2015-02-28
提取数据:
library(XML)
library(RCurl)
url1<-"http://www.covers.com/sports/NCAAB/matchups?selectedDate=2015-02-28"
data1<-htmlTreeParse(url1)
competype<-xpathSApply(xmlRoot(data1),"//div[@class = 'data-competition-type']")
然而,competype输出为空列表。
的DATA1的部分是象下面这样:
<div class="cmg_matchup_game_box" data-home-score="54" data-away-score="51" data-event-id="888836" data-index="147" data-following="false" data-last-update="2015-03-01T03:12:09.0000000" data-link="/Sports/NCAAB/Matchups/888836" data-handicap-difference="0.5" data-game-odd="-3.5" data-game-total="128" data-line-moves="7" data-sdi-event-id="/sport/basketball/competition:888836" data-game-date="2015-02-28 23:59:00" data-top-25="false" data-competition-type="Regular Season" data-conference="Big West" data-home-conference="Big West" data-away-conference="Big West">
我想提取“游戏竞争型”。我怎样才能使用R?我会很乐意提供任何帮助。非常感谢。