Get or set the object metadata in a corpus, tokens, dfm, or dictionary object. With the exception of dictionaries, this will be corpus-level metadata.
meta(x, field = NULL, type = c("user", "object", "system", "all"))
meta(x, field = NULL) <- valuean object for which the metadata will be read or set
metadata field name(s); if NULL (default), return all
metadata names
"user" for user-provided corpus-level metadata;
"system" for metadata set automatically when the corpus is created;
or "all" for all metadata.
new value of the metadata field
For meta, a named list of the metadata fields in the corpus.
For meta <-, the corpus with the updated user-level metadata. Only
user-level metadata may be assigned.
meta(data_corpus_inaugural)
#> $description
#> [1] "Transcripts of all inaugural addresses delivered by United States Presidents, from Washington 1789 onward. Data compiled by Gerhard Peters."
#>
#> $source
#> [1] "Gerhard Peters and John T. Woolley. The American Presidency Project."
#>
#> $url
#> [1] "https://www.presidency.ucsb.edu/documents/presidential-documents-archive-guidebook/inaugural-addresses"
#>
#> $author
#> [1] "(various US Presidents)"
#>
#> $keywords
#> [1] "political" "US politics" "United States" "presidents"
#> [5] "presidency"
#>
#> $title
#> [1] "US presidential inaugural address speeches"
#>
meta(data_corpus_inaugural, "source")
#> [1] "Gerhard Peters and John T. Woolley. The American Presidency Project."
meta(data_corpus_inaugural, "citation") <- "Presidential Speeches Online Project (2014)."
meta(data_corpus_inaugural, "citation")
#> [1] "Presidential Speeches Online Project (2014)."