keywords.md
In jiebaRS: Chinese Text Segmentation, POS Tagging, and Keyword Extraction

custom IDF dictionaries reject invalid formats

Code
  worker(type = "keywords", idf = empty_idf)
Condition
  Error in `new_worker()`:
  ! The custom IDF dictionary `<empty-idf>` contains no entries.

Code
  worker(type = "keywords", idf = invalid_idf)
Condition
  Error in `new_worker()`:
  ! Invalid custom IDF dictionary `<invalid-idf>` at line 1: IDF value must be numeric.

Code
  worker(type = "keywords", idf = duplicate_idf)
Condition
  Error in `new_worker()`:
  ! Invalid custom IDF dictionary `<duplicate-idf>` at line 3: duplicate word `北京烤鸭`; first defined at line 1.

keyword worker snapshots invalid IDF input

Code
  worker(type = "keywords", idf = 5)
Condition
  Error in `worker()`:
  ! `idf` must be `NULL` or a path to an IDF dictionary file.

Code
  worker(type = "keywords", idf = "/nonexistent/idf.txt")
Condition
  Error in `worker()`:
  ! `idf` must point to an existing IDF dictionary file.

keywords requires optional arguments to be named

Code
  keywords(keyword_text, keys_worker, "legacy")
Condition
  Error in `keywords()`:
  ! `...` must be empty.
  x Problematic argument:
  * ..1 = "legacy"
  i Did you forget to name an argument?

keywords snapshots invalid format input

Code
  keywords(keyword_text, keys_worker, format = "bad-format")
Condition
  Error in `keywords()`:
  ! `format` must be one of "vector", "data.frame", or "legacy", not "bad-format".

Code
  keywords(5, keys_worker)
Condition
  Error in `keywords()`:
  ! `code` must be a single non-NA character string.

Code
  keywords(keyword_text, worker(type = "mix"))
Condition
  Error in `keywords()`:
  ! `jiebar` must be a `jieba_keywords` object created with `worker(type = "keywords")`.