Returns the value of an XML element.
fxml_getValue(xmlflat.df, elemid)
xmlflat.df | A flat XML dataframe created with |
---|---|
elemid | The ID of the XML element. The ID is the value of the |
The value of the XML element with ID elemid
. NA
is returned if the element has no value.
# 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) # Get the value of the XML element with ID 4 (xml.dataframe$elemid. == 4) fxml_hasValue(xml.dataframe, 4)#> [1] TRUE