fxml_hasValue: Value of an XML element

Description Usage Arguments Value Author(s) See Also Examples

View source: R/flatxml.r

Description

Determines if an XML element carries a value.

Usage

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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.

Author(s)

Joachim Zuckarelli [email protected]

See Also

fxml_getValue

Examples

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# 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)

jsugarelli/flatxml documentation built on Aug. 7, 2018, 3:31 p.m.