R: The number of sub-elements within an XML node.

xmlSize {XML} | R Documentation

## The number of sub-elements within an XML node.

### Description

XML elements can contain other, nested sub-elements. This generic function determines the number of such elements within a specified node. It applies to an object of class XMLNode or XMLDocument.

### Usage

    xmlSize(obj)

### Arguments

`obj` | An an object of class XMLNode or XMLDocument.

### Value

an integer which is the `length` of the value from `xmlChildren`.

### Author(s)

Duncan Temple Lang

### References

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

### See Also

`xmlChildren`, `xmlAttrs`, `xmlName`, `xmlTreeParse`

### Examples

      fileName <- system.file("exampleData", "mtcars.xml", package="XML")
      doc <- xmlTreeParse(fileName)
      xmlSize(doc)
      xmlSize(doc$doc$children[["dataset"]][["variables"]])

[Package XML version 3.98-1.19 Index]