R: Applies a function to each of the children of an XMLNode

xmlApply {XML}

R Documentation

Applies a function to each of the children of an XMLNode

Description

These methods are simple wrappers for the lapply and sapply functions. They operate on the sub-nodes of the XML node, and not on the fields of the node object itself.

Usage

xmlApply(X, FUN, ...)
## S3 method for class 'XMLNode'
xmlApply(X, FUN, ...)
## S3 method for class 'XMLDocument'
xmlApply(X, FUN, ...)
## S3 method for class 'XMLDocumentContent'
xmlApply(X, FUN, ...)
xmlSApply(X, FUN, ...)
## S3 method for class 'XMLNode'
xmlSApply(X, FUN, ...)
## S3 method for class 'XMLDocument'
xmlSApply(X, FUN, ...)

Arguments

`X`	the `XMLNode` on whose children the regular `apply` or `sapply` is to be performed
`FUN`	the function to apply to each child node. This is passed directly to the relevant `apply` function.
`...`	additional arguments to be given to each invocation of `FUN`. This is passed directly to the relevant `apply` function.

Value

The result is that obtained from calling the apply or sapply on xmlChildren(x).

Author(s)

Duncan Temple Lang

References

http://www.w3.org/XML, http://www.jclark.com/xml, http://www.omegahat.net

Examples

 doc <- xmlTreeParse(system.file("exampleData", "mtcars.xml", package="XML"))
 r <- xmlRoot(doc)
 xmlSApply(r[[2]], xmlName)

 xmlApply(r[[2]], xmlAttrs)

 xmlSApply(r[[2]], xmlSize)

[Package XML version 3.98-1.9 Index]