Computes TF-IDF values for each word in given documents.

Computes TF-IDF values for each word in given documents.

h2o.tf_idf(
  frame,
  document_id_col,
  text_col,
  preprocess = TRUE,
  case_sensitive = TRUE
)

Arguments

frame	documents or words frame for which TF-IDF values should be computed.
document_id_col	index or name of a column containing document IDs.
text_col	index or name of a column containing documents if `preprocess = TRUE` or words if `preprocess = FALSE`.
preprocess	whether input text data should be pre-processed. Defaults to `TRUE`.
case_sensitive	whether input data should be treated as case sensitive. Defaults to `TRUE`.

Value

resulting frame with TF-IDF values. Row format: documentID, word, TF, IDF, TF-IDF