Remove empty documents from DocumentTermMatrix in R topicmodels?
“Each row of the input matrix needs to contain at least one non-zero entry” The error means that sparse matrix contain a row without entries(words). one Idea is to compute the sum of words by row rowTotals <- apply(dtm , 1, sum) #Find the sum of words in each Document dtm.new <- dtm[rowTotals> 0, ] … Read more