从R中的xmlTree中删除“xmlns”前缀(Remove “xmlns” prefix from xmlTree in R)

从R中的xmlTree中删除“xmlns”前缀(Remove “xmlns” prefix from xmlTree in R)

我需要在特定模式（“someLocalFile.xsd”）之后将R输出直接转换为XML。 使用'XML'包，是否可以从命名空间中删除“xmlns”前缀，以便我可以拥有以下内容：

期望的输出

<?xml version='1.0'?> <Assessment xmlns:xsi="http://website.com" xsi:schemaLocation="someLocalFile.xsd"> <stock>10</stock> <stock>20</stock> <stock>30</stock> </Assessment>

电流输出

... <Assessment xmlns:xsi="http://website.com" xmlns:xsi:schemaLocation="someLocalFile.xsd"> ...

我的代码：

library(XML) # z = xmlTree("Assessment", namespaces = list(xsi = "http://website.com", xsi:schemaLocation = "someLocalFile.xsd"), doc = newXMLDoc()) # z$addNode("stock", value = 10) z$addNode("stock", value = 20) z$addNode("stock", value = 30) z$closeTag() # cat(saveXML(z))

I need to translate R output directly into XML following a specific schema ("someLocalFile.xsd"). Using the 'XML' package, is it possible to remove the "xmlns" prefix from a namespace so I can have the following:

Desired Output

<?xml version='1.0'?> <Assessment xmlns:xsi="http://website.com" xsi:schemaLocation="someLocalFile.xsd"> <stock>10</stock> <stock>20</stock> <stock>30</stock> </Assessment>

Current Output

... <Assessment xmlns:xsi="http://website.com" xmlns:xsi:schemaLocation="someLocalFile.xsd"> ...

My code:

library(XML) # z = xmlTree("Assessment", namespaces = list(xsi = "http://website.com", xsi:schemaLocation = "someLocalFile.xsd"), doc = newXMLDoc()) # z$addNode("stock", value = 10) z$addNode("stock", value = 20) z$addNode("stock", value = 30) z$closeTag() # cat(saveXML(z))

最满意答案

xsi：schemaLocation应该是属性，而不是命名空间定义。 所以

z = xmlTree("Assessment", namespaces = c(xsi = "http://website.com"), attrs = c('xsi:schemaLocation' = "someLocalFile.xsd"), doc = newXMLDoc())

会做你想做的。 （您可以忽略有关缺少的命名空间定义的警告。）

The xsi:schemaLocation should be an attribute, not a namespace definition. So

z = xmlTree("Assessment", namespaces = c(xsi = "http://website.com"), attrs = c('xsi:schemaLocation' = "someLocalFile.xsd"), doc = newXMLDoc())

will do what you want. (You can ignore the warning about the missing namespace definition.)