XML package example code?

Peng Yu wrote:

I'm interested in parsing an html page. I should use XML, right? Could
you somebody show me some example code? Is there a tutorial for this
package?

Did you try looking through the help pages for the XML package or browsing
the Omegahat website?

Look at:

?library(XML)
??htmlTreeParse

And the relevant web page for documentation and examples is:

?http://www.omegahat.org/RSXML/

http://www.omegahat.org/RSXML/shortIntro.html

I'm trying the example on the above webpage. But I'm not sure why I
got the following error. Would you help to take a look?


$ Rscript main.R

library(XML)

download.file('http://www.omegahat.org/RSXML/index.html','index.html')

trying URL 'http://www.omegahat.org/RSXML/index.html'
Content type 'text/html; charset=ISO-8859-1' length 3021 bytes
opened URL
==================================================
downloaded 3021 bytes

doc = xmlInternalTreeParse("index.html")

Opening and ending tag mismatch: dd line 68 and dl
Opening and ending tag mismatch: li line 67 and body
Opening and ending tag mismatch: dt line 66 and html
Premature end of data in tag dd line 64
Premature end of data in tag li line 63
Premature end of data in tag dt line 62
Premature end of data in tag dl line 61
Premature end of data in tag body line 5
Premature end of data in tag html line 1
Error: 1: Opening and ending tag mismatch: dd line 68 and dl
2: Opening and ending tag mismatch: li line 67 and body
3: Opening and ending tag mismatch: dt line 66 and html
4: Premature end of data in tag dd line 64
5: Premature end of data in tag li line 63
6: Premature end of data in tag dt line 62
7: Premature end of data in tag dl line 61
8: Premature end of data in tag body line 5
9: Premature end of data in tag html line 1
Execution halted