ctgov_tfidf {ctrialsgov}

TF-IDF Keywords

Description

Takes one or more vectors of text and returns a vector of keywords.

Usage

ctgov_tfidf(
  ...,
  max_terms = 10000,
  tolower = TRUE,
  nterms = 5L,
  min_df = 0,
  max_df = 1
)

Arguments

...

one or more vectors of text to search; must all be the same length

max_terms

maximum number of terms to consider for keywords

tolower

should keywords respect the case of the raw terms

nterms

number of keyord terms to include

min_df

minimum proportion of documents that a term should be present in to be included in the keywords

max_df

maximum proportion of documents that a term should be present in to be included in the keywords

Value

a character vector of detected keywords