[R] Question about saving the context crawled by getNodeSet into a document

[Humphrey Zhao]

Dear Sir/Madam:

Thank you for your concern. I’m using getNodeSet in XML package to craw data from web pages, and I need to save it as a document. However, I tried write.table, write, and cat, but none of above could save the data. The error messages just like these:

> ac<-getNodeSet(article, "//div[@class='entry-content']") #attention to the majuscule> write.table(ac[[1]], file="E:/学术资源网络分析/article.txt")Error in as.data.frame.default(x[[i]], optional = TRUE) : 

  c("cannot coerce class \"c(\"XMLInternalElementNode\", \"XMLInternalNode\", \"XMLAbstractNode\"\" to a data.frame", "cannot coerce class \")\" to a data.frame")

> write(ac, file="E:/学术资源网络分析/article.txt")Error in cat(list(...), file, sep, fill, labels, append) : 

  argument 1 (type 'list') cannot be handled by 'cat'

I have tried to force the data from getNodeSet into data frame, but it does not work either:

> tmp <- data.frame(ac)Error in as.data.frame.default(x[[i]], optional = TRUE, stringsAsFactors = stringsAsFactors) : 

  不能把""XMLNodeSet""类别强迫变成数据框

I really confused how to save the data crawled by getNodeSet into a document. I wonder if you could give me some advice on solving this problem with R. And I would be most grateful if you could reply at your earliest convenience. Looking forward to hearing from you. Thank you very much.

                                     Sincerely yours 

                                     Humphrey Zhao
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