as.dictionary.textmodel_lda
                        Create a dictionary from topic terms
data_corpus_moviereviews
                        Movie reviews from Pang and Lee (2004)
divergence              Optimize the number of topics for LDA
perplexity              Optimize the hyper-parameters for LDA
sizes                   Compute the sizes of topics
terms                   Extract most likely terms
textmodel_lda           Unsupervised Latent Dirichlet allocation
textmodel_seededlda     Semisupervised Latent Dirichlet allocation
textmodel_seqlda        Sequential Latent Dirichlet allocation
topics                  Extract most likely topics
