A list of strings or a corpus from the tm package.
labeling
A vector of +1/-1 or TRUE/FALSE indicating which documents are considered relevant and
which are baseline. The +1/-1 can contain 0 whcih means drop the document.
banned
List of words that should be dropped from consideration.
params
List of parameters to pass to the call.
Details
Warning: do not call directly. Use textreg instead