Question

I can write xmlGetAttr(x,"title") and xmlGetAttr(x,"href")to get the atttributions “title” and “href”,
can i compound two statement into one?
xmlGetAttr(x,c("title","href")) can not work.
Error in a[[name]] : attempt to select more than one element

Answer 1

You can use xmlAttrs

xmlAttrs(x)[c("title","href")]

as an example:

require(XML)
udata<-htmlParse('http://cran.r-project.org/')
frames<-getNodeSet(udata,'//*/frame')
# > xmlAttrs(frames[[1]])[c('src','name')]
#         src        name 
# "logo.html"      "logo"