fhir_xpath_expression-class

<p>An S4 class for xpath_expressions
Objects of this class are essentially character vectors, but can only be valid
XPath (1.0) expressions.
They are mostly used in the <code>fhir_columns</code> class.</p>

Useful tools for conveniently downloading FHIR resources in xml format
and converting them to R data.frames. The package uses FHIR-search to download bundles
from a FHIR server, provides functions to save and read xml-files containing such bundles
and allows flattening the bundles to data.frames using XPath expressions. FHIR® is the registered trademark
of HL7 and is used with the permission of HL7. Use of the FHIR trademark does not constitute endorsement of this product by HL7.

Julia Palm

fhircrackr

Handling HL7 FHIR® Resources in R

Thomas Peschel

Jens Przybilla

Frank Meineke

fhir_xpath_expression-class function

An S4 class for xpath_expressions
Objects of this class are essentially character vectors, but can only be valid
XPath (1.0) expressions.
They are mostly used in the fhir_columns class. — fhir_xpath_expression-class

An S4 class for xpath_expressions
Objects of this class are essentially character vectors, but can only be valid
XPath (1.0) expressions.
They are mostly used in the <code>fhir_columns</code> class.

fhir_xpath_expression-class: An S4 class for xpath_expressions Objects of this class are essentially character vectors, but can only be valid XPath (1.0) expressions. They are mostly used in the `fhir_columns` class.

Description

Arguments