Refine keywords — refine_keywords • keyATM

Refine keywords by (1) dropping keywords that do not appear in the documents and (2) dropping topics that does not have any occurence in the documents.

refine_keywords(keywords, docs, prune = TRUE)

Arguments

keywords: a list of keywords
docs: a keyATM_docs object, generated by keyATM_read() function
prune: logical, whether to prune keywords that do not appear in the documents

Value

a list of refined keywords

Examples

if (FALSE) { # \dontrun{
  library(quanteda)
  data(keyATM_data_bills)
  bills_keywords <- keyATM_data_bills$keywords
  bills_dfm <- keyATM_data_bills$doc_dfm  # quanteda dfm object
  keyATM_docs <- keyATM_read(bills_dfm)
  bills_keywords$Videogame <- c("metroid", "castlevania", "balatro")
  refine_keywords(bills_keywords, keyATM_docs)
} # }