plyr, slam, scales, wordcloud, data.table, methods
slam, stringi, scales, wordcloud, data.table, methods,
quanteda, Rcpp (>= 0.12.12)
stringi, scales, wordcloud, data.table, methods, quanteda,
Rcpp (>= 0.12.12)
stringi, scales, wordcloud, data.table (>= 1.10.4), methods,
quanteda, Rcpp (>= 0.12.12)