fxml_numChildren {flatxml}

Children of an XML element

Description

Determines the number of children of an XML element.

Usage

fxml_numChildren(xmlflat.df, elemid)

Arguments

xmlflat.df

A flat XML dataframe created with fxml_importXMLFlat.

elemid

The ID of the XML element. The ID is the value of the elemid. field in the flat XML dataframe.

Value

The number of children of the XML element with ID elemid.

Author(s)

Joachim Zuckarelli [e-mail]

See Also

fxml_hasChildren, fxml_getChildren

Examples

# Load example file with population data from United Nations Statistics Division
# and create flat dataframe
example <- system.file("worldpopulation.xml", package="flatxml")
xml.dataframe <- fxml_importXMLFlat(example)

# Determine the number of children (sub-elements) of the XML element with ID 4
# (xml.dataframe$elemid. ==  4)
fxml_numChildren(xml.dataframe, 4)