Get Available Document-Feature Matrix with Fallback

Returns the first non-NULL DFM from a priority fallback chain. Useful when multiple DFM processing stages exist and you need the most processed available version.

Usage

get_available_dfm(
  dfm_lemma = NULL,
  dfm_outcome = NULL,
  dfm_final = NULL,
  dfm_init = NULL
)

Arguments

dfm_lemma

Optional lemmatized DFM (highest priority)

dfm_outcome

Optional preprocessed DFM (medium priority)

dfm_final

Optional final processed DFM (medium-low priority)

dfm_init

Optional initial DFM (lowest priority)

Value

The first non-NULL DFM from the priority chain, or NULL if all are NULL

Details

Priority order (highest to lowest):

1. dfm_lemma - Lemmatized tokens (most processed)

2. dfm_outcome - Preprocessed tokens

3. dfm_final - Final processed version

4. dfm_init - Initial unprocessed tokens

See also

Other preprocessing: get_available_tokens(), import_files(), prep_texts(), process_pdf_unified(), unite_cols()

Examples

if (FALSE) { # \dontrun{
dfm1 <- quanteda::dfm(quanteda::tokens("assistive technology supports learning"))
result <- get_available_dfm(dfm_init = dfm1)
} # }