NYTimes                 a sample dataset containing labeled headlines
                        from The New York Times.
USCongress              a sample dataset containing labeled bills from
                        the United State Congress.
as.compressed.matrix    converts a tm DocumentTermMatrix or
                        TermDocumentMatrix into a matrix.csr
                        representation.
load.model              loads a maximum entropy model from a file.
maxent                  trains a maximum entropy model given a training
                        matrix and a vector or factor of labels.
maxent-class            an S4 class containing the trained maximum
                        entropy model.
maxent-package          Low-memory Multinomial Logistic Regression with
                        Support for Text Classification
predict.maxent          predicts the expected label of a document given
                        a trained model.
save.model              saves a maximum entropy model to a file.
tune.maxent             fits a maximum entropy model given a training
                        matrix and a vector or factor of labels.
