Handling flat XML files

Hierarchical position of an XML element

fxml_getDepthLevel(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 the hierarchy level of the XML element with ID elemid. The root node of the XML data has hierarchy level 1.

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 hierarchy level of XML element with ID 3 (xml.dataframe$elemid. ==  3)
fxml_getDepthLevel(xml.dataframe, 3)
#> [1] 3