For example
fileName <- system.file("exampleData", "mtcars.xml", package="XML")
doc <- xmlTreeParse(fileName)
r<-xmlRoot(doc)
record<-r[["record"]]
record
the result :
<record id="Mazda RX4">21.0 6 160.0 110 3.90 2.620 16.46 0 1 4
4</record>
but in the mecars.xml there are 32 sub-nodes called "record"
when I use xmlChildren function
c<-xmlChildren(r)[["record"]]
c is also like that
<record id="Mazda RX4">21.0 6 160.0 110 3.90 2.620 16.46 0 1 4
4</record>
just the first sub-node is the default
My question is:
Is there a function that can get the sub-node according to the sub-node's
attribute ?
like that,in the mtcar.xml ,there is sub-node as follow:
<record id="Lotus Europa"> 30.4 4 95.1 113 3.77 1.513 16.90 1 1
5 2</record>
I want to get the specific sub-node according to the attribute "id="Lotus
Europa".
Is there a simple function in the xml package?
--
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Liang He
Institute of Geographic Sciences and Natural resource research
Chinese Academy of Science,
No.11, Datun Road, Chaoyang District,
Beijing 100101, China
Email: [email protected]
Tel: +86(10) 6488 9513
Mob:+86 0 13651318417
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