An R interface to the C 'libstemmer' library that implements Porter's word stemming algorithm for collapsing words to a common root to aid comparison of vocabulary. Currently supported languages are Danish, Dutch, English, Finnish, French, German, Hungarian, Italian, Norwegian, Portuguese, Romanian, Russian, Spanish, Swedish and Turkish.
Version 0.6.0 - 2018-01-07 * Fix wordStem(NA) to return NA instead of "NA".
Version 0.5.1 - 2014-08-08 * Clarify license.
Version 0.5 - 2013-05-22 * Initial release.