Please consider this:
<Manifest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >
<!-- eName : name of the element.
eValue : value of the element. -->
<OutputFilePath>./XYZ</OutputFilePath>
<FilesList>
<File>
<FileTypeId>10</FileTypeId>
<FilePath>./XYZ/</FilePath>
<PatientCharacteristics eName="one" eValue="1"/>
<PatientCharacteristics eName="two" eValue="2"/>
<PatientCharacteristics eName="three" eValue="3"/>
</File>
</FilesList>
</Manifest>
I am attempting to use XML package and xpathSApply() to extract, say, the
eValue attribute for eName=='0ne' for all <File> nodes that have
<FileTypeId>==10. I try the following, amoung several things:
doc<-xmlInternalTreeParse(Manifest)
Root = xmlRoot(doc)
xpathSApply(Root,
"//File[FileTypeId=10]/PatientCharacteristics/[...@ename='one']", xmlAttrs)
and it does not work.
Might somebody help me with the syntax here?
Thanks a lot!!
Aaron
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