如何使用XML包刮取html表？
以巴西足球队的维基百科页面为例.我想在R中阅读并获得"巴西队对阵FIFA认可球队所有比赛的名单"表作为data.frame.我怎样才能做到这一点？
我有一份我需要下载的学术论文标题清单.我想写一个循环来从网上下载他们的PDF文件,但找不到办法.
以下是我到目前为止所考虑的一步一步(答案是欢迎使用R或Python):
# Create list with paper titles (example with 4 papers from different journals)
titles <- c("Effect of interfacial properties on polymer–nanocrystal thermoelectric transport",
"Reducing social and environmental impacts of urban freight transport: A review of some major cities",
"Using Lorenz curves to assess public transport equity",
"Green infrastructure: The effects of urban rail transit on air quality")
#Loop step1 - Query paper title in Google Scholar to get URL of journal webpage containing the paper
#Loop step2 - …