Parent of an XML element

Source: R/flatxml.r

Determines, if an XML element has a parent element.

fxml_hasParent(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

TRUE, if a parent element for the XML element with ID elemid exists, FALSE otherwise (which would mean that the XML element is the root node of the XML document).

See also

fxml_getParent

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)

# Check if the XML element with ID 4 (xml.dataframe$elemid. ==  4) has a parent element
fxml_hasParent(xml.dataframe, 4)
#> [1] TRUE