NEWS

terms.data.frame now returns the ‘terms’ attribute if it is part of x and it is not null, otherwise it calls the previously implemented terms.data.frame, this is done in order to circumvent the assumption that stats::terms always calls stats:::terms.default on the output of model.frame (which is used o.a in the hardhat package). While one can debate over what stats::terms should return, note that the use of terms in the BTM package is mimicked from similar functionality in the terms function from the topicmodels NLP package.

Allow in BTM to return as well the biterms as the vocabulary using an extra argument called detailed. For compatibility with the textplot package.
Added in the docs examples of plotting but put these in dontrun blocks to avoid package dependencies