Cumulative type-token ratio

TTR reports the ratio of unique word types to the total size of a text.

Usage

get_ttr(x)

Arguments

x

A vector, such as a column of character strings

Value

A vector of ratios

See also

Other vectorized functions: get_cumulative_vocabulary(), get_frequency(), get_hir(), get_htr(), get_idf_by(), get_match(), get_sentiment(), get_tf_by(), get_tfidf_by(), is_hapax(), is_new()

Examples

c("cat", "dog", "dog", "bat", "dog") |>
  get_ttr()
#> [1] 1.0000000 1.0000000 0.6666667 0.7500000 0.6000000