[R] problem withrbind function

Hi all, I am trying to to merge two data.frames(kk and ff) like kk a b d 1 1 4 7 2 2 5 8 3 3 6 9 ff a b d 1 2 5 8 2 3 6 9 3 4 7 1 and g-rbind(kk,ff) is working perfectly and giving results but if any of the column name changed then its giving Error in match.names(clabs, names(xi)) :

Re: [R] problem withrbind function

You can change the column names with 'colnames'. If they have the same number of columns, then you can give them consistent names and they will 'rbind' together. In the case where they have different column names, do you want to create as output something with 4 columns with the missing rows