as_rdf

The Resource Description Framework, or 'RDF' is a widely used
data representation model that forms the cornerstone of the
Semantic Web. 'RDF' represents data as a graph rather than
the familiar data table or rectangle of relational databases.
The 'rdflib' package provides a friendly and concise user interface
for performing common tasks on 'RDF' data, such as reading, writing
and converting between the various serializations of 'RDF' data,
including 'rdfxml', 'turtle', 'nquads', 'ntriples', and 'json-ld';
creating new 'RDF' graphs, and performing graph queries using 'SPARQL'.
This package wraps the low level 'redland' R package which
provides direct bindings to the 'redland' C library.  Additionally,
the package supports the newer and more developer friendly
'JSON-LD' format through the 'jsonld' package. The package
interface takes inspiration from the Python 'rdflib' library.

Carl Boettiger

rdflib

Tools to Manipulate and Query Semantic Data

Bryce Mecum

Anna Krystalli

Viktor Senderov

as_rdf function

<dl><dt>x</dt>
<dd>an object to coerce into RDF (list, list-like, or data.frame)</dd>
<dt>rdf</dt>
<dd>An existing rdf object, (by default a new object will be initialized)</dd>
<dt>prefix</dt>
<dd>A default vocabulary (URI prefix) to assume for all predicates</dd>
<dt>base</dt>
<dd>A base URI to assume for blank subject nodes</dd>
<dt>context</dt>
<dd>a named list mapping any string to a URI</dd>
<dt>key_column</dt>
<dd>name of a column which should be
treated as the primary key in a table. must be unique</dd></dl>

Arguments

Coerce an object into RDF — as_rdf

<dl>

<dt>x</dt>
<dd>an object to coerce into RDF (list, list-like, or data.frame)</dd>


<dt>rdf</dt>
<dd>An existing rdf object, (by default a new object will be initialized)</dd>


<dt>prefix</dt>
<dd>A default vocabulary (URI prefix) to assume for all predicates</dd>


<dt>base</dt>
<dd>A base URI to assume for blank subject nodes</dd>


<dt>context</dt>
<dd>a named list mapping any string to a URI</dd>


<dt>key_column</dt>
<dd>name of a column which should be
treated as the primary key in a table. must be unique</dd>

</dl>

as_rdf: Coerce an object into RDF

Description

Usage

Arguments

Examples