`ngram_vocab=True` ignores single words in vocabulary

[mirorac]

When ngram_vocab=True is used, single words seem to be ignored in the vocabulary. In previous versions, this behavior did not occur, so I wanted to check if this change was intentional or an unintended regression.

Here’s the relevant line in the code:

Top2Vec/top2vec/top2vec.py

Line 890 in 2435731

vocab = phrases

Suggested fix:

vocab += phrases  

Could merging the phrases with the previously built vocabulary resolve the issue, or is this the expected behavior in the latest version?

[ddangelov]

It was intentional, as single words would often end up as top topic words rather than the ngrams.