Value of an XML element

Source: R/flatxml.r

Determines if an XML element carries a value.

fxml_hasValue(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 the XML element has a value (not being equal to NA), FALSE otherwise.

See also

fxml_getValue

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 element with ID 4 (xml.dataframe$elemid. ==  4) carries a value
fxml_hasValue(xml.dataframe, 4)
#> [1] TRUE