Hello R community, I am a novice R enthusiast trying to use R to convert an RDFdump file [1] from Semantic Mediawiki [2] into something that can be natively imported by GePhi [3] for graph visualization. The SMW RDFdump file is formatted as RDF/XML and I have found the R package "rdflib" [4] and am able to read the RDF/XML file into R as an "rdf" object, but it is not clear to me how to save the "rdf_serialize" function output to a new file.
What I have so far is: library(rdflib) NewRDF <- tempfile( "TempFile", fileext = ".nq" ) MyRDF <- rdf_parse( "MyRDFdumpFile.txt" ) rdf_serialize( MyRDF, NewRDF, format = "nquads" ) write_nquads( MyRDF, NewRDF ) ..but this results in the error: "Error: object of type 'closure' is not subsettable" I will keep struggling with this to learn what I need to learn, but any advice to help make quick work of this would be much appreciated. Thank you in advance. /Rich [1] https://www.semantic-mediawiki.org/wiki/Help:Maintenance_script_dumpRDF.php [2] https://www.semantic-mediawiki.org/wiki/Help:Introduction_to_Semantic_MediaWiki [3] https://gephi.org/ [4] https://cran.r-project.org/web/packages/rdflib/rdflib.pdf - Richard Evans, NASA GRC - Armstrong Test Facility mailto://richard.k.ev...@nasa.gov http://www.linkedin.com/in/rkevans ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
