XML/XPath: Difference between revisions
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doc <- xmlInternalTreeParse("test3.xml") |
doc <- xmlInternalTreeParse("test3.xml") |
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# 1st Task: Retrieve the first "item" element |
# 1st Task: Retrieve the first "item" element |
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(firstItemElement <- getNodeSet(doc,"//item")[[1]]) |
(firstItemElement <- getNodeSet(doc, "//item")[[1]]) |
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# 2nd task: Perform an action on each "price" element (print it out) |
# 2nd task: Perform an action on each "price" element (print it out) |
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prices <- sapply(getNodeSet(doc,"//price"),xmlValue) |
prices <- sapply(getNodeSet(doc, "//price"), xmlValue) |
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for(i in 1:length(prices)) print(prices[i]) |
for(i in 1:length(prices)) print(prices[i]) |
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# 3rd Task: Get an array of all the "name" elements |
# 3rd Task: Get an array of all the "name" elements |
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(namesArray <- sapply(getNodeSet(doc,"//name"),xmlValue)) |
(namesArray <- sapply(getNodeSet(doc, "//name"), xmlValue)) |
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</lang> |
</lang> |
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