我正在关注本教程：https://www.youtube.com/watch?v=TPLMQnGw0Vk 并试图刮：http://www.oddsportal.com/soccer/england/premier-league-2014-2015/arsenal-west-brom-AyTNt38e/#over-under;2;2.50;0
我想要的信息是平均赔率超过2.5个目标，在这个例子中是1.5
library("rvest")
html = html("http://www.oddsportal.com/soccer/england/premier-league-2014-2015/arsenal-west-brom-AyTNt38e/#over-under;2;2.50;0")
html1 = read_html("http://www.oddsportal.com/soccer/england/premier-league-2014-2015/arsenal-west-brom-AyTNt38e/#over-under;2;2.50;0")
# I tried using both html and read_html, because I got that warning message.
htmlSO = html_nodes(html1, ".aver .right:nth-child(3)")
#.aver.... I got using SelectorGadget
#List of 0.
如何存储数据1.50？