title: Load vectors into gensim Word2Vec model - not KeyedVectors
body: <p>I'm attempting to load some pre-trained vectors into a gensim <code>Word2Vec</code> model, so they can be retrained with new data. My understanding is I can do the retraining with <code>gensim.Word2Vec.train()</code>. However, the only way I can find to load the vectors is with <code>gensim.models.KeyedVectors.load_word2vec_format('path/to/file.bin', binary=True)</code> which creates an object of what is usually the <code>wv</code> attribute of a <code>gensim.Word2Vec</code> model. But this object, on it's own, does not have a <code>train()</code> method, which is what I need to retrain the vectors. </p>
  
  <p>So how do I get these vectors into an actual <code>gensim.Word2Vec</code> model?</p>