text2vec パッケージを使用して、語彙を作成しました。
vocab = create_vocabulary(it_0, ngram = c(2L, 2L))
語彙はこんな感じ
> vocab
Number of docs: 120
0 stopwords: ...
ngram_min = 2; ngram_max = 2
Vocabulary:
terms terms_counts doc_counts
1: knight_severely 1 1
2: movie_expect 1 1
3: recommend_watching 1 1
4: nuke_entire 1 1
5: sense_keeping 1 1
---
14467: stand_idly 1 1
14468: officer_loyalty 1 1
14469: willingness_die 1 1
14470: fight_bane 3 3
14471: bane_beginning 1 1
列 terms_counts の範囲を確認するにはどうすればよいですか? 次のステップである剪定の際に役立つので、これが必要です
pruned_vocab = prune_vocabulary(vocab, term_count_min = <BLANK>)
以下のコードは再現可能です
library(text2vec)
text <- c(" huge fan superhero movies expectations batman begins viewing christopher
nolan production pleasantly shocked huge expectations dark knight christopher
nolan blew expectations dust happen film dark knight rises simply big expectations
blown production true cinematic experience behold movie exceeded expectations terms
action entertainment",
"christopher nolan outdone morning tired awake set film films genuine emotional
eartbeat felt flaw nolan films vision emotion hollow bought felt hero villain
alike christian bale typically brilliant batman felt bruce wayne heavily embraced
final installment bale added emotional depth character plot point astray dark knight")
it_0 = itoken( text,
tokenizer = word_tokenizer,
progressbar = T)
vocab = create_vocabulary(it_0, ngram = c(2L, 2L))
vocab