Functions to add or retrieve corpus summary metadata
Functions to add or retrieve corpus summary metadata
add_summary_metadata(x, extended = FALSE, ...)
get_summary_metadata(x, ...)
summarize_texts_extended(x, stop_words = stopwords("en"), n = 100)This is provided so that a corpus object can be stored with
summary information to avoid having to compute this every time
[summary.corpus()] is called.
So in future calls, if !is.null(meta(x, "summary", type = "system") && !length(list(...)), then summary.corpus() will simply return
get_system_meta() rather than compute the summary statistics on the fly,
which requires tokenizing the text.
add_summary_metadata() returns a corpus with summary metadata added
as a data.frame, with the top-level list element names summary.
get_summary_metadata() returns the summary metadata as a data.frame.
summarize_texts_extended() returns extended summary information.
corp <- corpus(data_char_ukimmig2010)
corp <- quanteda:::add_summary_metadata(corp)
quanteda:::get_summary_metadata(corp)
## Not run:
# using extended summary
extended_data <- quanteda:::summarize_texts_extended(data_corpus_inaugural)
textplot_wordcloud(extended_data$top_dfm, max_words = 100)
\dontrun{
library("ggplot2")
ggplot(data.frame(all_tokens = extended_data$all_tokens), aes(x = all_tokens)) +
geom_histogram(color = "darkblue", fill = "lightblue") +
xlab("Total length in tokens")
}
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.