regarding the difference, intersection and union of two vectors

Question

I have a csv file, which has two rows, and each row corresponds to a list of words. I read this csv file into a 2*2000 matrix as follows:

termlist = as.matri         


        

Answer 1

You're looking for intersect and setdiff:

term.intersect <- intersect(termlist[1,], termlist[2,])
term2.diff.term1 <- setdiff(termlist[2, ], termlist[1, ])